Steam trains (Baldwin C-16; LNER Class A4 4468 Mallard; DRG Class 86; Mason Bogie 2-6-6T)

Steam trains (New York Central Hudson) Background info: Baldwin C-16

100th memorial anniversary of Pierre-Auguste Renoir (Pierre-Auguste Renoir (1841–1919) “Dance at Bougival” (detail), 1883; “Portrait of Mademoiselle Irène Cahen d'Anvers”, 1880; “Lise” (detail), 1867; “The Theatre Box”, 1874)

100th memorial anniversary of Pierre-Auguste Renoir (Pierre-Auguste Renoir (1841–1919) “Flowers in a Vase”, c. 1866) Background info: “Luncheon of the Boating Party”, (detail) 1880-1881

Princess Diana (Her Majesty The Queen Elizabeth II, Diana, Princess of Wales (1961–1997); Prince William)

Princess Diana (Diana, Princess of Wales (1961–1997) with her sons Harry and William)

Golf (Brooks Koepka; Rory McIlroy; Justin Rose; Tiger Woods)

Golf (Dustin Johnson) Background info: Brooks Koepka

Fire engines (Merryweather 1952 AEC Regent; Fire truck Ford F15; Fire truck Tatra 805; Commer QX ORT875)

Fire engines (Fire truck Chevrolet LQ) Background info: Fire truck Ford F15, Merryweather 1952 AEC Regent

Alexander Fleming (Alexander Fleming (1881–1955), Sarcoscypha coccinea; Penicillium chrysogenum, Alexander Fleming receiving his Nobel Prize in Physiology or Medicine in 1945; Methylene blue staining; Armillaria solidipes)

Alexander Fleming (Alexander Fleming (1881–1955), Benzylpenicillin, Omphalotus nidiformis)

60th anniversary of the launch of Luna 1 (Gennady Ushakov and Makhmud Alikov receive signals from the Luna 1 spacecraft launched on January 2, 1959; Upper floor (block E) of the Luna launcher and Luna spacecraft 1)

60th anniversary of the launch of Luna 1 Background info: Sectional diagram of the upper stage (block E) of the Luna launcher and Luna spacecraft 1, Vostok-L

Military ships (HMCS Algonquin; HMS Invincible; JDS Hyūga; USS Iowa)

Military ships (HMAS Darwin)

Freemasons (Jack Johnson (1878–1946); Silvio Berlusconi; Winston Churchill (1874–1965); Gustave Eiffel (1832–1923))

Freemasons (Felix Mendelssohn (1809–1847)) Background info: Winston Churchill (1874–1965)

80th anniversary of the beginning of World War II (BA-10; North American B-25 Mitchell; Junkers Ju 87; Tank T-18)

80th anniversary of the beginning of World War II (PZL.50 Jastrząb) Background info: Tank T-18

Volcanoes (Sabancaya, Peru; Augustine Volcano, Alaska; Mount Slamet, Indonesia; Stromboli, Italy)

Volcanoes (Izalco, El Salvador) Background info: Krakatoa, Indonesia

Big cats (Panthera leo leo; Panthera tigris tigris; Neofelis nebulosa; Puma concolor)

Big cats (Panthera onca) Background info: Panthera uncia

Whales (Physeter macrocephalus; Monodon monoceros, Balaenoptera musculus; Delphinapterus leucas; Megaptera novaeangliae)

Whales (Eubalaena australis) Background info: Megaptera novaeangliae, Orcinus orca