Today in History – January 7

1990 – The interior of the Leaning Tower of Pisa is closed to the public because of safety concerns.

1968 – Surveyor Program: Surveyor 7, the final spacecraft in the Surveyor series, lifts off from launch complex 36A, Cape Canaveral.

1960 – The Polaris missile is test launched.

1942 – World War II: The siege of the Bataan Peninsula begins.