Hello，teachers！ Which word should I use?

[Harry12345]

Hello，teachers！ Which word should I use?

ShangHai EXPO is one of the most important events in Chinese history.
ShangHai EXPO is one of the most important activities in Chinese history.

Thank you!

 

[Rover_KE]

An EXPO is usually considered to be an event, I would say.

Rover

 

[BobK]

:up: There is even the specific activity (!) 'event management'. One of the greatest activities in Chinese history might be thought to be the building of the Great Wall ;-)

b