History, The More You Know

Leaning Tower of Pisa Wasn't Straight

The Leaning Tower of Pisa was never straight. Known for its lean, this Italian bell tower was constructed in the 12th century. When construction on the second story started, the tower started to lean, due to the unstable ground it was being built on.

The first living creature in space was a dog named Laika.
Roman emperor Caligula planned to make his favourite horse a senator.
Before alarm clocks became the norm, there were people called knocker-uppers who would literally knock on people’s window to wake them up in time for work.
A typing error of a single hyphen in the coding of the Mariner I rocket, caused it to blast before take off and cost NASA $630 million dollars.