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May 30
ON THIS DAY

May 30

5 moments across history

1868

Memorial Day observed for the first time

Memorial Day observed for the first time

The first Memorial Day observance at Arlington National Cemetery in 1868.

Memorial Day observed for the first time — detail

General John A. Logan, who established Decoration Day through General Order No. 11.

On May 30, 1868, Decoration Day (later Memorial Day) was observed for the first time nationwide, honoring Union soldiers who died in the Civil War. General John A. Logan declared it at Arlington National Cemetery, where 5,000 participants decorated graves with flowers.

1971

Mariner program launches Mariner 9 to Mars

Mariner program launches Mariner 9 to Mars

Mariner 9 spacecraft before launch, the first probe to orbit another planet.

Mariner program launches Mariner 9 to Mars — detail

Mars as imaged by Mariner 9, revealing Olympus Mons and Valles Marineris.

On May 30, 1971, NASA launched Mariner 9, which became the first spacecraft to orbit another planet when it reached Mars on November 14. Despite arriving during a global dust storm, it mapped 85% of the Martian surface and discovered volcanoes, canyons, and evidence of ancient water.

1981

The Times publishes its first color photograph

The Times publishes its first color photograph

The historic front page of The Times featuring its first color photograph.

The Times publishes its first color photograph — detail

Prince Charles and Lady Diana in their engagement photo that appeared in color.

On May 30, 1981, The Times of London published its first color photograph on the front page, showing Prince Charles and Lady Diana Spencer. The innovation marked a turning point in newspaper publishing, though full-color daily editions took years to become standard.

2006

Serbia declares independence

Serbia declares independence

The Serbian parliament building in Belgrade where independence was declared.

Serbia declares independence — detail

Map showing the dissolution of Serbia-Montenegro union in 2006.

On May 30, 2006, Serbia's parliament formally declared independence following Montenegro's secession from the State Union of Serbia and Montenegro. The declaration came after a referendum in which 55.5% of Montenegrins voted for independence, dissolving the last remnant of Yugoslavia.