But just how much earlier is a question few historians agree on.
Historians agree he played a major role in starting the war.
Such was the case, most historians agree, 60 years ago.
Many historians agree that in some ways it was both.
In fact without it, most historians agree that the Bill could never have passed.
Historians do not agree on the date of his death but it was probably 1271 or 1272.
However, most historians agree that he died in August 1709, at the age of 93 years and 5 months.
Most historians now agree that Mary was born in 1499.
Historians cannot quite agree on whether bureaucracy began here or in China.
Historians agree they then died at the hands of Stalin.