James Ussher
A 17th-century scholar-primate whose biblically calculated date for Creation profoundly influenced Western thought for centuries.
1581–1656 (age 75)·17th-century Anglican Archbishop of Armagh·Birthday: January 4
Biography
James Ussher was not merely a church leader but one of the most formidable intellectuals of his age. Appointed Archbishop of Armagh in 1625, he navigated the treacherous religious and political conflicts between Ireland, England, and Scotland with a reputation for profound erudition rather than partisan fire. His true passion lay in scholarship: he amassed one of the greatest private libraries in Europe and produced meticulous works on church history and theology. Ussher's most enduring, and now most debated, legacy is his biblical chronology, published in 1650, which pinpointed the moment of creation to the evening preceding October 23, 4004 BC. This calculation, integrating historical records from ancient civilizations, was long accepted as scientific fact in the English-speaking world. Beyond chronology, his rigorous textual analysis helped authenticate the writings of early Christian figures. Ussher's life embodies the era when faith and reason were intertwined, and his scholarly authority left an imprint that lasted well into the age of Darwin.
#1 When James Was Born
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James's Life & Times
The world at every milestone
1581Born
1586Started school
1594Became a teenager
1597Could drive
1599Could vote
1602Turned 21
1611Turned 30
1621Turned 40
1631Turned 50
1641Turned 60
1651Turned 70
1656Died at 75
Key Achievements
- Calculated the date of the Creation as October 22, 4004 BC, a chronology printed in the margins of many Bibles for over 200 years.
- Produced definitive scholarly work authenticating the epistles of Ignatius of Antioch.
- Served as Archbishop of Armagh and Primate of All Ireland from 1625 until his death.
- Built a monumental personal library of over 10,000 volumes, which later formed the core of Trinity College Dublin's collection.
Did You Know?
His extensive library was purchased after his death by the Crown and eventually given to Trinity College Dublin.
He was offered the position of Bishop of Meath, which was wealthier, but chose the more prestigious Archbishopric of Armagh instead.
He was buried in Westminster Abbey, a rare honor for an Irish churchman.
He calculated the exact date for the crucifixion of Jesus as Friday, April 3, 33 AD.
“The beginning of time, according to our chronology, fell upon the entrance of the night preceding the twenty-third day of October in the year 4004 BC.”
