During the Sino-Japanese War ( 1937 – 1945 ) and World War II ( 1939 – 1945 ), the Special Research Units of the Imperial Japanese Army, such as Unit 731, conducted human experimentation on thousands of Chinese, among others.

By 1939 Nissan's operations had moved to Manchuria, then under Japanese occupation, where its founder and President, Yoshisuke Ayukawa, established the Manchurian Motor Company to manufacture military trucks.

* 1939 – Tadahiro Matsushita, Japanese politician ( d. 2012 )

* 1939 – Jun Henmi, Japanese writer and poet

* 1939 – Sonosuke Fujimaki, Japanese fencer

The 400 Million ( 1939 ) depicted the history of modern China and the resistance to the Japanese invasion, including dramatic shots of the Battle of Taierzhuang.

Moreover, the pact erased the legal distinction between war and peace since the signatories, having renounced the use of war began to wage wars without declaring them as evidenced by the U. S. intervention in Central America, the Japanese invasion of Manchuria in 1931, the Italian invasion of Abyssinia in 1935, the Soviet invasion of Finland in 1939, and the German and Soviet Union invasions of Poland.

During the Japanese occupation of Hainan ( 1939 – 1945 ), the Li suffered heavily.

* 1939 – A Japanese Imperial Army ammunition dump explodes at Hirakata, Osaka, Japan, killing 94.

* 1939 – Sumio Iijima, Japanese physicist

The Battle of Khalkhin Gol, a border conflict of 1939 ostensibly between Mongolia and Manchukuo, saw heavy fighting between Japanese and Soviet forces.

In the census of December 1939, the total population of the South Pacific Mandate was 129, 104, of which 77, 257 were Japanese ( including ethnic Taiwanese and Koreans ).

Thus at the Battle of Lake Khasan, in 1938, and the Battle of Khalkhin Gol, in 1939, major border clashes with the Imperial Japanese Army, the doctrine was not used.

In September 1939, Menzies found himself a wartime leader of a small nation of 7 million people that depended on Britain for defence against the looming threat of the Japanese Empire, with 100 million people, a very powerful military, and an aggressive foreign policy that looked south.

The history textbook controversy centers upon the secondary school history textbook Atarashii Rekishi Kyōkasho (" New History Textbook ") said to minimise the nature of Japanese militarism in the First Sino-Japanese War ( 1894 – 95 ), in annexing Korea in 1910, in the Second Sino-Japanese War ( 1937 – 45 ), and in the Second World War ( 1939 – 45 ).

* 2011 – Jun Henmi, Japanese author and poet ( b. 1939 )

British historian Antony Beevor views the beginning of the Second World War as the Japanese invasion of Manchuria in August 1939.

Soviet troops fought the Japanese during the Battle of Khalkhin Gol in Mongolia, 1939.

Although the battle was a Soviet victory, the Japanese dismissed it as an inconclusive draw, and on 11 May 1939 decided to move the Japanese-Mongolian border up to the Khalkhin Gol River by force.

< imagemap > File: 1940s decade montage. png | Above title bar: events during World War II ( 1939 – 1945 ): From left to right: Troops in an LCVP landing craft approaching " Omaha " Beach on " D-Day "; Adolf Hitler visits Paris, soon after the Battle of France ; The Holocaust occurred during the war as Nazi Germany carried out a programme of systematic state-sponsored genocide, during which approximately six million European Jews were killed ; The Japanese attack on the American naval base of Pearl Harbor launches the United States into the war ; An Observer Corps spotter scans the skies of London during the Battle of Britain ; The atomic bombings of Hiroshima and Nagasaki are the first uses of nuclear weapons, killing over a quarter million people and leading to the Japanese surrender ; Japanese Foreign Minister Mamoru Shigemitsu signs the Instrument of Surrender on behalf of the Japanese Government, on board USS Missouri, effectively ending the war.

* June 14 – Tientsin Incident: The Japanese blockade the British concession in Tianjin, China, beginning a crisis which almost causes an Anglo-Japanese war in the summer of 1939.

** Kanoko Okamoto, Japanese novelist, poet, and Buddhism scholar ( d. 1939 )

Category: Comics characters introduced in 1939

The notation was introduced in 1939 by Paul Dirac and is also known as Dirac notation, though the notation has precursors in Grassmann's use of the notation for his inner products nearly 100 years previously.

In the 1939 lecture, Tolkien introduced the term " fantasy " in a sense of " higher form of Art, indeed the most nearly pure form, and so ( when achieved ) the most potent ".

Category: Amusement rides introduced in 1939

In 1939, he married Eileen Loo, who had introduced him to the GSD community.

The Flying Red Horse ( Pegasus ) logo was introduced in 1939, and in 1954 the Plume brand was replaced by Mobilgas.

In 1939 they introduced their electric razor, the Philishave ( marketed in the USA using the Norelco brand name ).

While it was not a true ice age, the term was introduced into the scientific literature by François E. Matthes in 1939.

Although the " Brothers " was dropped from the name for trucks in 1929 and cars in 1930, the DB star remained in the cars until the 1939 models were introduced.

The concept of a fish restaurant was introduced by Samuel Isaacs ( born 1856 in Whitechapel, London ; died 1939 in Brighton, Sussex ) who ran a thriving wholesale and retail fish business throughout London and the South of England in the latter part of the 19th century.

Postal codes were first introduced in the Ukrainian Soviet Socialist Republic in December 1932, but the system was abandoned in 1939.

Historically, the first term for optimization was " linear programming ", which was due to George B. Dantzig, although much of the theory had been introduced by Leonid Kantorovich in 1939.

At the 1939 New York World's Fair, National Presto Industries, known as the " National Pressure Cooker Company " at the time, introduced its own pressure cooker.

* 1939 – The View-Master stereo viewer is introduced.

First to be introduced were their northern descendants — the " Rangers ", and the southern people appeared when Tolkien pondered in 1939 over the course of the narrative following the Council of Elrond.

Category: Comics characters introduced in 1939

In 1939, Crayola, by combining its existing crayon colors with the Munsell colors, introduced its largest color assortment product to date ; a " No. 52 Drawing Crayon 52 Color Assortment ", which was retired by the 1944 price list.

Electricity, provided by Texas Power and Light, was introduced in 1939.

In 1939 a Machine Fuze Setter was introduced to eliminate manual fuze setting.

Forsyth made his television debut in 1939 as a child, singing and dancing on a talent show introduced by Jasmine Bligh, probably an episode of Come and Be Televised ( BBC, 1939 ), broadcast from Radiolympia.

Between early 1939 and late 1941, DC and sister company All-American Publications introduced such popular superheroes as Batman and Robin, Wonder Woman, The Flash, Green Lantern, the Atom, Hawkman, and Aquaman, while Timely Comics, the 1940s predecessor of Marvel Comics, had million-selling titles that featured the Human Torch, the Sub-Mariner, and Captain America.

This was despite Curtin furiously opposing conscription during World War I, and again in 1939 when it was introduced by the Menzies government.

Recursion theory in mathematical logic has traditionally focused on relative computability, a generalization of Turing computability defined using oracle Turing machines, introduced by Turing ( 1939 ).

The current four-lap ( ten-mile ) qualifying distance was first introduced in 1920, and has been used every year since 1939.