What was the event that opened Japan for trading with the rest of the world? Why is this ont important in modern japoneses history

On July 8, 1853, American Commodore Matthew Perry led his four ships into the harbor at Tokyo Bay, seeking to re-establish for the first time in over 200 years regular trade and discourse between Japan and the western world.

Well, I know that it was the triangular slave trade Britain, Africa, and America that had two types of packing, loosely, they had slight space on ships, and tight-packing. They were all packed on top of each other for higher capacity.Dun't judge me please. I'm from Havana Cuba so I dun't know much about this stuff.