July 21

Monday 21, 1997:

The fully restored USS Constitution (aka "Old Ironsides") celebrates her 200th birthday by setting sail for the first time in 116 years.

Tuesday 21, 1970:

After 11 years of construction, the Aswan High Dam in Egypt is completed.

Saturday 21, 1877:

After rioting by Baltimore and Ohio Railroad workers and the deaths of 9 rail workers at the hands of the Maryland militia, workers in Pittsburgh stage a sympathy strike that is met with an assault by the state militia.

Thursday 21, 1403:

Battle of Shrewsbury: King Henry IV of England defeats rebels to the north of the county town of Shropshire, England

Monday 21, 1298:

Battle of Falkirk (1298): King Edward I of England defeats Scottish rebels led by William Wallace.