Victory Day is a common name of many different public holidays in various countries to commemorate victories in important battles or wars in the countries' history.

This national holiday was established to commemorate the end of the Khmer Rouge regime in 1979.

April 30 is an annual holiday in Vietnam to commemorate the fall of Saigon in 1975 at the end of the Vietnam War. It is commonly known as Victory Day (Ngày Chiến thắng), Reunification Day (Ngày Thống nhất), or Liberation Day (Ngày Giải phóng).

In Vietnam, May 9, 1954 marks the victory of Vietnam over French forces at the battle of Dien Bien Phu. This victory ended 80 years of French colonization and began the time of independence for Vietnam.

Victory Day marks the end of World War II in Europe, specifically the capitulation of Nazi forces to the Allies (the United Kingdom, Soviet Union, France, the United States and other principal Allied nations) on May 8, 1945. The British Channel Islands were not liberated from German Occupation until May 9 (Jersey and Guernsey), May 10 (Sark), and May 16 (Alderney).

Tom Cochrane, OC (born May 14, 1953) Canadian musician and humanitarian, best known for his hit songs "Life Is a Highway", "Lunatic Fringe", "Human Race" and "I Wish You Well". Cochrane fronted the Canadian rock band Red Rider and has won seven Juno Awards. He is a member of the Canadian Music Hall of Fame, an Officer of the Order of Canada, has an Honorary Doctorate from Brandon University and is an Honorary Colonel in the Royal Canadian Air Force. In September 2009, he was inducted onto the Canadian Walk of Fame.

Cochrane was born in Lynn Lake, Manitoba, to Violet and Tuck Cochrane, a bush pilot. The family relocated to Acton, Ontario, when Tom was four years old and later to Etobicoke, Ontario. He purchased his first guitar at age 11 by selling a toy train set. Cochrane attended Martingrove Collegiate Institute in the late 1960s. In the early 1970s, he was performing in coffee houses across Canada. He eventually made his way to Los Angeles where he found a job writing theme music for the movie My Pleasure Is My Business, the Xaviera Hollander story. Unable to find steady income from music, Cochrane returned to Toronto, where he drove a taxi cab and later took a job on a Caribbean cruise liner.

Prussian blue is a dark blue pigment with the idealized formula Fe₇(CN)₁₈. Another name for the color Prussian blue is Berlin blue or, in painting, Parisian blue. Turnbull's blue is the same substance but is made from different reagents.

Prussian blue was one of the first synthetic pigments. It is employed as a very fine colloidal dispersion, as the compound itself is not soluble in water. It is famously complex, owing to the presence of variable amounts of other ions and the sensitive dependence of its appearance on the size of the colloidal particles formed when it is made. The pigment is used in paints, and it is the traditional "blue" in blueprints.

In medicine, Prussian blue is used as an antidote for certain kinds of heavy metal poisoning (caesium and thallium).

Prussian blue lent its name to prussic acid, which was derived from it, and to ferrocyanide (originally meaning "blue compound of iron", from Latin ferrum and Greek κυανεος). As ferrocyanide is made of iron and CN ligands, reinterpreting the component "-cyanide" in the compound word, produced the word "cyanide" for compounds containing the CN radical.