Katyn Admission

 On 13 April 1990 the Soviet Union finally admitted responsibility for the Katyn Massacre (the murder of Polish officers in 1940).

Milwaukee

 I wrote a brief history of Milwaukee

History of Submarines

 I wrote a brief history of submarines 

History of Sewers

 I wrote a brief history of sewers 

History of Creationism

 I wrote a brief history of Creationism 

The first women

 I wrote a list of the first women to accomplish things.

Copenhagen History

 I wrote a brief history of Copenhagen