Hi! The construction of the Willis Tower started in 1970, and it opened in 1973. 😀
The "willis" tower was never constructed. The Sears tower was constructed. It was renamed "willis" but chicagoens ignore that new name. We will only refer to it as the sears tower.
1970 to 1973 Amazing feat to accomplish in 3 years.
The Sears Tower was completed in 1973. The name was then changed to Willis Tower in 2009.
Why did they change the name ?
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