Counting a Child's Age

An age is now a number derived from a registered date of birth. For most of recorded history the legal systems, religious communities and administrations that attached duties and protections to a person's age had no such register, and they reckoned age by different rules: from conception, from birth, by completed years, by the year in progress, by lunar years. Where a rule such as majority, liability to punishment, eligibility to marry or entitlement to protection depends on a stated age, the way the age is counted, and who is believed about it, decides who falls inside the rule. Ishita Pande's study of colonial India treats age in the courtroom as an administrative and political construction rather than a plain fact about the body, and the cases gathered below suggest that the same description fits other places and periods.

The cases come from several regimes. They include the Roman Republic and Principate (events of the first century BC, reported by writers of the first and second centuries AD), the Sanskrit legal tradition of early historic India, rabbinic Judaism in the Roman province of Palestine, the classical schools of Islamic jurisprudence, the kingdom of France under Charles V (1374), medieval and Victorian England, the courts of English-occupied Rouen (1431), London in 1765, Saxony in 1840, Tibet in 1950, and the United Kingdom from the 1840s to the 1990s. The sources are statutes and ordinances, jurists' texts, inscriptions, trial records, parish and civil registers, jury records, concert posters and newspapers. Nearly all were composed by adults, and many long after the events they describe. Each case is identified by place, regime and date where it first appears. Legal rules are described as they stood in the period named, not as current law, except where the text says otherwise. Ages are given as the sources give them, and where two sources disagree both figures are reported.

1. The eighth year, counted from when?

The Laws of Manu, a Sanskrit legal text from early historic India, composed on the majority view between about 200 BC and AD 200 (Olivelle allows the second or third century AD), set the age for the initiation that makes a boy "twice-born". A brahmin is to be initiated "in the eighth year after conception", a kshatriya in the eleventh and a vaishya in the twelfth. A later verse gives the latest limits: the completion of the sixteenth, twenty-second and twenty-fourth year (Manu 2.36 and 2.38). The count starts at conception. An eighth year counted from conception ends about seven years and three months after birth, so by a count from birth the brahmin boy would be about seven. An earlier verse (2.37) gives optional younger ages, the fifth, sixth and eighth year, for families seeking particular results.

Roman writers of the Principate counted differently again. Suetonius, writing around AD 120, says that Octavian, the future emperor Augustus, delivered a funeral oration for his grandmother Julia "in his twelfth year" (51 BC), and that he took the adult toga four years later. Counting a "twelfth year" as the year in which a child is eleven gives eleven at the oration. Nicolaus of Damascus, a contemporary of Augustus (the date of his writing is debated), puts the oration at about nine. A nineteenth-century biographical dictionary suggests Nicolaus may have lowered the age to heighten the boy's brilliance. Suetonius wrote some 170 years after the event. Neither writer gives a date for the speech.

In the kingdom of France, Charles V fixed the age of a king's majority by ordinance in 1374. The ordinance, now in the Archives nationales (K 51 A, no. 1), is dated 14 August 1374, and its dating clause places it at Nemours. It sets the age at fourteen. French sources explain that the fourteenth year begins at thirteen completed years. The two figures often quoted, thirteen and fourteen, describe one rule counted two ways. Louis XIV, who had become king at four in 1643, was born on 5 September 1638, and his majority was proclaimed on 7 September 1651, two days after his thirteenth birthday. Benoît Grévin's book-length study of the ordinance (2021, 615 pages) examines the legal, theological, historical and philosophical sources behind its drafting.

Rabbinic Jewish law counts to the day. The Mishnah, redacted in Roman Palestine around AD 200 by Judah the Prince, in tractate Niddah 5:6 treats the vows of a girl of twelve years and a day, and of a boy of thirteen years and a day, as valid. In classical Islamic jurisprudence the signs of puberty come first. Where no signs appear, the Shafi'i and Hanbali schools, named after jurists of the eighth and ninth centuries AD, give fifteen lunar years, which is about fourteen and a half solar years. Abu Hanifa gave eighteen for boys and seventeen for girls, and the Maliki school is usually given as eighteen. Imami Shi'i jurists give fifteen lunar years for boys and nine for girls, a figure that jurists of the Sunni schools rarely hold, and some contemporary Imami jurists prefer menstruation or thirteen for girls (Encyclopaedia Iranica, "Bolūḡ").

In England and Wales, statute law now fixes the moment. A person attains a given age at the start of the relevant anniversary of birth, so that a person is eighteen from the first moment of the eighteenth anniversary (Family Law Reform Act 1969, s. 9). Before the Act took effect on 1 January 1970, the common law treated a person as attaining an age on the day before the anniversary (a Wilberforce Chambers note on the case law).

2. One child, several ages

Quintus Sulpicius Maximus died soon after competing at Rome in AD 94. His tomb carries a Latin prose epitaph that gives his age to the day, eleven years, five months and twelve days. A Greek verse epigram on the same monument is translated in an early English version as "a lad of twelve short years". The Latin counts completed time. The Greek, which is verse, may count the year he was living.

Joan of Arc was tried at Rouen in 1431 by a pro-English church court. Rouen had been held by the English since 1419. She said she thought she was about nineteen. Asked how old she was when she left home, she said she did not know. The record gives several versions of her age at the first voice. On 21 February she is recorded as saying that she heard it "when she was thirteen years old" (Barrett's translation), in the original "about the age of thirteen". On 22 February she is recorded as saying that she was in her thirteenth year ("dans ses treize ans", in the French translation). On 27 February she said that the voices had governed her for seven full years, which with nineteen gives twelve. No register of her birth survives. The date of 6 January 1412 comes from later testimony.

The History of William Marshal, written about seventy-five years after the siege of Newbury in 1152, is the main source for Marshal as a child hostage. Accounts of his age at the siege vary from four to eight.

In Tibet, the 14th Dalai Lama assumed full temporal power on 17 November 1950. Most sources give his age as fifteen. Tibetan sources give sixteen, by Tibetan reckoning. Traditionally a Dalai Lama took full power at eighteen, so this was three years early.

Versions of the story of Gauss as a schoolboy give his age as seven or as about nine. Judith Kaplan's bat mitzvah in New York on 18 March 1922 is dated and aged consistently in the sources checked. She was born on 10 September 1909, so she was twelve and a half, which is past the twelve years and a day at which the Mishnah treats a girl's vows as valid.

George Brewster, a climbing boy who died in a chimney at Fulbourn Asylum near Cambridge on 11 February 1875, appears with several ages. Press reports of the inquest gave between fourteen and fifteen, and his death was registered at fourteen in the Chesterton district in January to March 1875. Modern accounts give eleven or twelve, and local research on his family places his birth in 1863, which makes him eleven.

These differences have different causes. The Latin and Greek on the tomb use different counting rules. Joan did not know her age, and the record has her giving it three ways in one week. The sources on Marshal and Octavian were written long after the events. The Dalai Lama and Gauss cases have two figures in circulation, each repeated. The record on Brewster offers no explanation for its difference. A master sweep had a reason to give a higher age after the 1864 Act, though no source found shows that this happened.

3. Ages adjusted for advantage

On 26 March 1778 a poster in Cologne announced a six-year-old keyboard player. Ludwig van Beethoven, baptised on 17 December 1770, was seven. His father, Johann, is often suspected of taking the year off to bring Mozart to mind, but the Beethoven-Haus in Bonn says that the family was unsure of Beethoven's exact age, and other documents from his years in Bonn also give it wrongly. His birth is not recorded, only his baptism.

London notices of 1765 gave Wolfgang as eight, when he was nine. Nannerl's age was misreported too, and was given correctly, as thirteen, only in a notice of 13 May 1765 (Edge and Black). A letter printed in the Public Advertiser on 10 May 1765 took up the suspicion that the performer was not a child but a man stunted by some defect, and defended the stated age of eight. Wolfgang had turned nine on 27 January 1765.

Daines Barrington examined Mozart, and in his paper said that he had suspected the father of understating the age. The Bavarian envoy in London, Count Haslang, obtained a copy of the register of christenings from Salzburg, signed on 3 January 1769, and the paper was read to the Royal Society on 15 February 1770. It dates the examination to June 1765 and gives Mozart's age then as eight years and five months. The register copy printed in the paper gives the birth date as 17 January 1756, an error for 27 January, and on either date Mozart was nine years and five months old in June 1765. The check was made, and the figure it produced was still a year too young. The YFL essay Marvel Children: Who Makes the Wonder? describes how adults framed the ages of prodigies.

4. Proof

In 1840 an Act of the Parliament of the United Kingdom prohibited anyone under twenty-one from being compelled or knowingly allowed to climb a chimney for sweeping. An Act of 1864 restricted the employment of children under ten and added an enforcement provision that put the burden of proving age on the sweep. In any prosecution where the age of a child or young person was in question, proof of age was to lie on the defendant. In 1875 a further Act required chimney sweeps to hold a police certificate. It received royal assent on 11 August 1875, six months after Brewster's death.

The 1864 provision treats age as a fact someone has to establish and says who has to do it. It does not say what counts as proof.

Proof by memory. In medieval England the proof was often a neighbour's memory. When an heir who held land directly from the Crown claimed to be of age, the royal escheator empanelled a jury, and each juror was asked how he knew the date of the birth. Jurors were asked to look back twenty-one years for an heir and fourteen or sixteen years for an heiress (Rosenthal 2018). The earliest surviving proofs of age date from 1272. Between 1246 and 1430 more than ten thousand testimonies were recorded from more than ten thousand jurors. A proof of 1423 for William, an heir in Sussex, shows the form. One juror, aged fifty-four or more, had baptised his first-born son in a neighbouring church on the day. Another, aged fifty-two or more, said his house at Eastbourne was burned immediately after William's birth. A third remembered the death and burial of his son on the day (Calendar of Inquisitions Post Mortem, vol. 22). Rosenthal counted 414 proofs in the calendar volumes for 1377 to 1447, containing nearly five thousand individual memories, from baptisms and burials to fires and journeys, and the church itself was often what fixed the memory. The age was proved by what people remembered of a day twenty-one years earlier. How reliably a memory reconstructs a date is the subject of Hey!, Want To Know: Why Witness Testimony is the Weakest Link? and, in plain speak, In Other Words... why our recall of the past is never nothing but the truth?.

Proof by register. Records changed what proof could mean. In England, parish registers of baptisms, marriages and burials were ordered in 1538, and they recorded baptisms, not births. An Act of 1812 (Rose's Act, in force from 1813) regulated them. Civil registration of births began in England and Wales on 1 July 1837 under the Births and Deaths Registration Act 1836, in Scotland in 1855, and in Ireland in 1864 for births and deaths. The Births and Deaths Registration Act 1874 made the parent or guardian responsible for registering a birth within 42 days and set fines for failure, from 1875. Before that the duty of finding births lay with the registrar, and accounts differ on whether registration was compulsory before 1874. The indexes of the General Register Office show age at death from 1866. Brewster's death was therefore registered with an age, and the age was fourteen.

Ishita Pande's study of child marriage in India (Cambridge, 2020) traces the same difficulty through the Child Marriage Restraint Act of 1929. She shows how the legislature set the "digits of age" that defined a child, how census statistics were used to estimate the scale of the problem, and how age could, or could not, be proved in colonial courts by forensic methods and documents. She treats age there as "a question of power and not a fact about the body". The age limits were political choices, and each of them needed a method of proof that courts were not always able to supply.

Proof by the body or by a number. Where there was no document, older legal systems fell back on the body or on a number. In Rome, two schools of jurists disagreed about when a boy reached puberty. The Sabinians (also called Cassians) held that it should be judged by the body. The Proculians held that it came when he had completed fourteen years. Gaius records the dispute. Justinian's Institutes later settled on fourteen for boys and twelve for girls. A nineteenth-century reference work notes that there is no evidence the physical inspection was ever carried out, and a recent Polish article argues that the dispute may have been settled earlier, under Antoninus Pius. Islamic and Jewish law also put signs of puberty first and fall back on a fixed age when the signs do not appear (a default of fifteen lunar years in the Shafi'i and Hanbali schools; thirteen and a day for boys in Jewish law).

In each system a number serves as the answer when the body gives no clear sign and no record exists. The number was agreed. The person it describes was not asked.

5. What hung on the count

The count mattered because rights and duties changed hands at a set point.

In medieval England, a male heir who held land by knight service was a ward until twenty-one. A female heir was a ward until fourteen if married and until sixteen if not, a limit that comes from the Statute of Westminster I (1275), chapter 22 (as summarised in the 1810 Encyclopaedia Britannica, "Wardship"). Whether a guardian lord kept the land and the marriage turned on the date. The Court of Wards that administered the system was abolished in 1646, a date the Act of 1660 that confirmed it gives as 1645 because the English year then began on 25 March.

In Scotland, before 1969, the general age of majority was twenty-one, and some older statutes used twenty-five. Examples are the right of a person under twenty-five to redeem lands held in security, and the rule that the nearest male relative on the father's side over twenty-five should act as tutor. The Age of Majority (Scotland) Act 1969 (royal assent 25 July 1969) provided that a person attains majority at eighteen instead of twenty-one, and replaced twenty-one or twenty-five with eighteen in the older statutes listed in its first schedule. It came into force on 1 January 1970 (SI 1969/1243). The categories of pupil and minor in Scots law came from Roman law, in which a child was a pupil until twelve or fourteen. Whether the twenty-five-year provisions descend from the Roman rule that protected those under twenty-five was not established.

In England and Wales the Family Law Reform Act 1969 changed the age at which a person attained full age from twenty-one to eighteen. The Latey Committee on the Age of Majority, which reported in July 1967, had recommended it. The Act's first section redefined "full age" across the statute book. Wills moved from twenty-one to eighteen. In 1992 the Criminal Justice Act 1991 moved the upper limit of "young person" in the Children and Young Persons Act 1933 from seventeen to eighteen.

Clara Wieck married Robert Schumann in Saxony on 12 September 1840, the day before her twenty-first birthday. Her father, Friedrich Wieck, had refused his consent, and the couple went to court. Accounts differ on what followed. Popular accounts say that at twenty-one she would have been free to marry without his consent, which makes the date the last day on which he could have objected. Other accounts say that consent was needed whatever the age of the couple, and that the court's ruling in Schumann's favour in the summer of 1840 is what allowed the marriage. The reason for choosing that day is not established in the sources found.

6. What the record shows

A child's age, in these records, is a figure that someone produced, by a rule, from a source. The rule can differ (from conception, from birth, by completed years, by the year in progress, by lunar year). The source can be a register, an inscription, a poster, a memory or the child's own estimate. The person counting can have a reason to count in one direction or the other.

Laws that depend on age depend on all three. The records show systems responding in different ways: Britain's 1864 law assigned the burden of proof; English jurors recalled the day of a birth; Roman jurists argued about the body against the number; Justinian chose a number; Jewish law counted to the day; France fixed a king's majority by ordinance; and English statute law fixed the moment at which a birthday begins. Registers, where they existed, did not close the question: Brewster's registered age and the age given by research on his family differ by three years.

The cases do not show that any of these rules was wrong. They show that the age on which a protection rested was always the result of a measurement, and that the measurement was made by someone with a position.

---

References

• Archives nationales (France). Ordinance of Charles V, 14 August 1374, K 51 A, no. 1.
• Barrington, D. (1770). Account of a very remarkable young musician. Philosophical Transactions of the Royal Society, 60, 54–64.
• Barrett, W. P. (trans.) (1932). The Trial of Jeanne d'Arc. New York: Gotham House (first published London: Routledge, 1931).
• Births and Deaths Registration Act 1836 (6 & 7 Will. 4 c. 86); Births and Deaths Registration Act 1874; Parochial Registers Act 1812 (Rose's Act, 52 Geo. 3 c. 146).
• Bühler, G. (trans.) (1886). The Laws of Manu. Sacred Books of the East, vol. 25. Oxford; and Olivelle, P. (trans.) (2005). Manu's Code of Law. Oxford University Press.
• Calendar of Inquisitions Post-Mortem and other Analogous Documents preserved in the Public Record Office, vol. 22: 1–5 Henry VI (1422–27), ed. K. Parkin, intro. C. Carpenter. Boydell & Brewer, 2003.
• Chimney Sweepers and Chimneys Regulation Act 1840; Chimney Sweepers Regulation Act 1864 (27 & 28 Vict. c. 37); Chimney Sweepers Act 1875 (38 & 39 Vict. c. 70).
• Criminal Justice Act 1991, s. 68 and Sch. 8; Children and Young Persons Act 1933, s. 107.
• Edge, D. and Black, D. (eds). Mozart: New Documents, entries for 13 March 1765 and 10 May 1765.
• Encyclopaedia Iranica. "Bolūḡ" (age of majority).
• Family Law Reform Act 1969 (c. 46); Age of Majority (Scotland) Act 1969 (c. 39); Age of Majority (Scotland) Act 1969 (Commencement) Order 1969 (SI 1969/1243).
• Gaius, Institutes 1.196; Justinian, Institutes 1.22; Codex Justinianus 5.60.3.
• Garulli, V. (2018). A portrait of the poet as a young man: the tomb of Quintus Sulpicius Maximus on the Via Salaria. In Goldschmidt and Graziosi (eds), Tombs of the Ancient Poets. Oxford University Press.
• Grévin, B. (2021). La Première Loi du royaume: l'acte de fixation de la majorité des rois de France (1374). Classiques Garnier.
• Hobbins, D. (trans.) (2005). The Trial of Joan of Arc. Harvard University Press; Quicherat, J. (ed.) (1841–49). Procès de condamnation et de réhabilitation de Jeanne d'Arc; Champion, P. (ed.) (1920–21). Procès de condamnation de Jeanne d'Arc.
• Latey Committee (1967). Report of the Committee on the Age of Majority. Cmnd 3342. HMSO.
• Mishnah, Niddah 5:6; Avot 5:21; Talmud, Kiddushin 16b. Center for Online Judaic Studies, "The Redaction of the Mishnah".
• Nicolaus of Damascus, Life of Augustus, trans. C. M. Hall (1922); Suetonius, Augustus 8.1.
• Pande, I. (2020). Sex, Law, and the Politics of Age: Child Marriage in India, 1891–1937. Cambridge University Press.
• Rosenthal, J. T. (2018). Social Memory in Late Medieval England: Village Life and Proofs of Age. Palgrave Macmillan.
• Statute of Westminster I (1275), c. 22.
• Nelson, J. R. "The Boy Poet Sulpicius: a tragedy of Roman education", with an early English translation of the epitaphs. The School Review, pp. 384–395, DOI 10.1086/434483. (volume and year not confirmed)
• Yadav, A. (2026). Eternal Light: The Life and Legacy of the 14th Dalai Lama. Westland Books (extract on the 14th Dalai Lama's assumption of power published in The Wire).