The Chicago World Fair (may 1, 1893 – oct 31, 1893)

Description:

When: The fair lasted from May 1st 1893 to October 31st
Where: Jackson Park in Chicago
Who: The fair was built by two people; Daniel Hudson Burnham and Root.
What: The Chicago Fair is considered to be the fair that "changed America"; this fair has brought more than 27 million people to modern things like elevators, the zipper, ferris wheels, the first voice recording and much more.
Why: it was a tribute to Christopher Columbus' contribution to america about 100 years later!
impact: changed american architecture nowadays.