The date commemorates date that Foster died.

This date, originally October 10, commemorates the opening day of the 1964 Summer Olympics held in Tokyo.

The date commemorates the death of national literary icon Luís de Camões on 10 June 1580.

He favors abandoning Nov. 7, but opposes Nov. 4, since that date, too, would commemorate a violent struggle, not unity.

The two dates on the Great Seal, 1869 and 1890, commemorate the organization of the territorial government and Wyoming's admission to the Union.

Guam was subject to fierce fighting when U.S. troops recaptured the island on July 21, 1944, a date commemorated every year as Liberation Day.

What did the date and designs commemorate?

The date also commemorates the 1971 Corpus Christi massacre, when student protests were violently oppressed.

It was established in 1994 and officially inaugurated on March 1, 1997, coinciding with the date commemorated every year as a historical day for Yogyakarta City.

This date in much of western Europe commemorates the same event, but in Spain it refers to much more.