Events relating to chronology

Later selected by Hebrew scholars as the date when the world began, this becomes the first year (AM 1) in Jewish chronology

This year is later selected by Roman scholars as the date of the founding of Rome, becoming the first year (AUC 1) in Roman chronology

Peisistratos seizes power in Athens and rules as a benevolent dictator for more than thirty years

Christians decide (though not until AD 525) that this is the year of Christ's birth, making it AD 1 in the Christian chronology

Dionysius Exiguus, commissioned by the pope to improve chronology, makes an error of at least four years in his selected event for AD 1

The year of the Hegira (Muhammad's move from Mecca to Medina) becomes Anno Hegirae or AH1, the first year in Muslim chronology

English surveyor William Smith compiles a manuscript, Order of the Strata, revealing chronology through fossils in rocks