The most important event in American history that starts with the letter O is probably the Olympics.
The most important event in all history is the coming of Jesus Christ.
The Louisiana Purchase
Because it was the most important event in human history.
Portugal granted independence to its largest African colonies.
One important event was when Brazil gained independence of Portugal in 1822. Another was that most Brazilians originated from the major groups.
the great awakening
your mom was born
what is the most important event in history of N.Z?
the great depression and the dust bowl
The most important event in all history is the coming of Jesus Christ.
I would say because that's where the Declaration of Independence was signed, which was a very important event in American History. Hope that helps :)
Though it was an important battle during WWII it cannot be called the most important event in history
The Louisiana Purchase
It is a historical event (in the past)
Yes. It was a major event in 1912 and is history.
The Great Depression
The Battle of Saratoga.