American Impressionists (Childe Hassam (1859-1935) “April (The Green Gown)”, 1920; Colin Campbell Cooper (1856-1937) “New York from Brooklyn”, 1910; Frederick Carl Frieseke (1874-1939) “Woman Seated in a Garden”, 1914; Edward Henry Potthast (1857-1927) “Summer day, Brighton Beach”)

American Impressionists (Colin Campbell Cooper (1856-1937) “Summer”, 1918)

80th memorial anniversary of Louis Bleriot (Bleriot XI, Dover castle, England; Louis Bleriot (1872-1936), The first flight across the English Channel in 1909, Dover, Calais; Bleriot 5190; Bleriot III)

80th memorial anniversary of Louis Bleriot (Bleriot XI)

90th memorial anniversary of Claude Monet (Claude Monet (1840-1926) “The Red Road near Menton”, 1884; “Morning on the Seine”, 1893; “Plum Trees in Blossom at Vetheuil”, 1879; “Argenteuil, Flowers by the Riverbank”, 1877)

90th memorial anniversary of Claude Monet (Claude Monet (1840-1926) “The Mount Riboudet in Rouen at Spring”, 1872)

40th anniversary of Commercial Service of Concorde (Air France Concorde 205 F-BVFA; British Airways Concorde 214 G-BOAG; Air France Concorde 203 F-BTSC; British Airways Concorde 204 G-BOAC)

40th anniversary of Commercial Service of Concorde (Air France Concorde 213 F-BTSD; Air France Concorde 215 F-BVFF )

Diana, Princess of Wales (Parents Edward Spencer and Frances Ruth Roche)

Diana, Princess of Wales

100th anniversary since Albert Einstein publishes the theory of relativity (Speed relativity in Albert Einstein’s theory of relativity, 1916; Time relativity in Albert Einstein’s theory of relativity, 1916; Albert Einstein (1879-1955), Space curvature in Albert Einstein’s theory of relativity, 1916; Stars positions according to Albert Einstein’s theory of relativity, 1916)

100th anniversary since Albert Einstein publishes the theory of relativity (Albert Einstein (1879-1955), Albert Einstein’s theory of relativity, 1916)

Commemoration of 350th anniversary of the Great Fire of London (Jan Griffier (1652-1718) “The Great Fire of London”, 1675; “The Great Fire of London”, 1700; “The Great Fire of London”, 1666; Philip James de Loutherbourg “The Great Fire of London”, 1797)

Commemoration of 350th anniversary of the Great Fire of London (Jan Griffier “The Great Fire of London”, 1675)

80th anniversary since the first flight of LZ 129 Hindenburg (LZ 129 Hindenburg above the Berlin Cathedral; LZ 129 Hindenburg at the mooring mast; Max Pruss (1891-1960), the commander of the LZ 129 Hindenburg; LZ 129 Hindenburg over Berlin Olympic Stadium, Mercedes-Benz 770)

80th anniversary since the first flight of LZ 129 Hindenburg

55th anniversary of the first human to journey into Outer Space (Yuri Gagarin (1934-1968); Vostok 1)

55th anniversary of the first human to journey into Outer Space (Yuri Gagarin (1934-1968))

Marilyn Monroe (Marilyn Monroe (1926-1962))

Marilyn Monroe (Marilyn Monroe (1926-1962))