In response to suspected biological warfare development in Nazi Germany, the U. S., U. K., and Canada initiated a biological warfare development program in 1941 that resulted in the weaponization of anthrax, brucellosis, and botulism toxin.

He also served as a Nazi spy in the United States and, in 1941, he was caught by the Federal Bureau of Investigation ( FBI ) in the largest espionage case in U. S. history: The Duquesne Spy Ring.

Relations further deteriorated when, in January 1948, the U. S. State Department also published a collection of documents titled Nazi-Soviet Relations, 1939 – 1941: Documents from the Archives of The German Foreign Office, which contained documents recovered from the Foreign Office of Nazi Germany revealing Soviet conversations with Germany regarding the Molotov-Ribbentrop Pact, including its secret protocol dividing eastern Europe, the 1939 German-Soviet Commercial Agreement, and discussions of the Soviet Union potentially becoming the fourth Axis Power.

* 1941 – United States President Franklin D. Roosevelt declares December 7 to be " a date which will live in infamy ", after which the U. S. and the Republic of China declare war against Japan.

* 1941 – U. S. President Franklin D. Roosevelt signs a bill establishing the fourth Thursday in November as Thanksgiving Day in the United States.

The flathead UH and ULH models were discontinued after 1941, while the 74 " U & UL flathead models were produced up to 1948.

* 1941 – World War II: U. S. forces land in Iceland, taking over from an earlier British occupation.

* 1941 – Charles Lindbergh testifies before the U. S. Congress and recommends that the United States negotiate a neutrality pact with Adolf Hitler.

He started studying mathematics in 1941 in the U. S., but his studies were interrupted by the war, during which he served in the military.

* 1941 – W47NV ( now known as WSM-FM ) begins operations in Nashville, Tennessee becoming the first FM radio station in the U. S ..

* 1941 – World War II: U. S. President Franklin D. Roosevelt proclaims an " unlimited national emergency ".

In 1941, the British Secret Service had John Waddington Ltd., the licensed manufacturer of the game outside the U. S., create a special edition for World War II prisoners of war held by the Nazis.

One 1941 property from the Waco, Texas-based Alamo Plaza Courts chain, the first US motel chain ( founded 1929, expansion stopped with the departure of the chain's founders in the 1950s ), still stands on U. S. Route 190 in Baton Rouge, Louisiana, but has been declining steadily since a change of ownership in the mid-1980s.

* 1941 – Tommy Thompson, 42nd U. S. Governor of Wisconsin and 19th Secretary of Health and Human Services

* 1856 – Louis Brandeis, U. S. Supreme Court Justice ( d. 1941 )

* 1941 – World War II: Franklin Delano Roosevelt approves U. S. $ 1 billion in Lend-Lease aid to the Allied nations.

U. S. Federal law approved by the President Harry S. Truman on June 27, 1952 declared all persons born in Puerto Rico on or after January 13, 1941 to be citizens of the U. S. at birth and all persons born in Puerto Rico between April 11, 1899, and January 12, 1941, and meeting certain other technical requirements, and not citizens of the United States under any other Act, were declared to be citizens of the U. S. as of January 13, 1941.

Early in 1941 they were assigned to a script titled Hot Nocturne.

so during the period approximately from 1941 to 1946, Patchen often used private detective stories as a myth reference, and the `` private eye '' as a myth hero.

`` The cannery '', said Mrs. Lewellyn Lundeen, an active booster of the cannery since its opening during the war and rationing years of 1941, to handle the `` victory garden '' produce, `` is a service to the taxpayer.

This agency accepted responsibility for medical services to a population ranging from 638,560 persons in 1941 to 840,503 in 1956 in the Kwango District and adjacent areas east of Leopoldville.

Each year from 1941 on, its medical staff had conducted intensive field investigations to determine changes in population structure and vital rates and, as its primary objective, the incidence of major diseases.

The West was now glad to propose the 1919 Curzon Line, which was substantially Russia's 1941 border, as the boundary between Russia and Poland.

In the Dunn-Atherton memorandum of February 4, 1942, the State Department had expected to be able to hold Russia in check by withholding agreement to her 1941 boundaries.

Volume 1, was completed in 1941 and published in 1944.

Work on Volume 2, was begun in 1941, interrupted by the war in 1942, and resumed in 1945.

The vision of a Lord Tennyson expressed in a poem 100 years ago took visible form over London in the air blitzes of 1941.

A veteran diplomat with an extraordinary knowledge of Russian language, history and literature, Kennan recalls how, at the time of Hitler's attack on the Soviet Union in 1941, he penned a private note to a State Department official, expressing the hope that `` never would we associate ourselves with Russian purposes in the areas of eastern Europe beyond her own boundaries ''.

This method was used until the Los Angeles Times announced the winners before the ceremony began ; as a result, the Academy has used a sealed envelope to reveal the name of the winners since 1941.

E. B. Tylor ( 2 October 1832 – 2 January 1917 ) and James George Frazer ( 1 January 1854 – 7 May 1941 ) are generally considered the antecedents to modern social anthropology in Britain.

Turkey's First Geography Congress in 1941 created two regions to the east of the Gulf of Iskenderun-Black Sea line named the Eastern Anatolia Region and the Southeastern Anatolia Region, the former largely corresponding to the western part of the Armenian Highland, the latter to the northern part of the Mesopotamian plain.

The provinces of Turkey are organized into 7 census-defined regions (), which were originally defined at the First Geography Congress in 1941.

In the last of Kurosawa's films as an assistant director, Horse ( Uma, 1941 ), Kurosawa took over most of the production, as Yamamoto was occupied with the shooting of another film.

In 1941, van Vogt decided to become a full-time writer, quitting his job at the Canadian Department of National Defence.

* 1941 – Hans W. Geissendörfer, German director

* 1871 – Ioannis Metaxas, Greek general and dictator ( d. 1941 )

* 1941 – Bobby Moore, English footballer ( d. 1993 )

* 1941 – Cesária Évora, Cape Verdean singer ( d. 2011 )

* 1908 – Lajos Vajda, Hungarian painter ( d. 1941 )

* 1941 – Way Bandy, American make-up artist ( d. 1986 )

* 1887 – Mervyn S. Bennion, American captain ( d. 1941 )