Examlex
Find the vertex and focus of the parabola.
Levittown
Low-cost, mass-produced developments of suburban tract housing built by William Levitt after World War II on Long Island and elsewhere.
Four Freedoms
Freedom of speech, freedom of worship, freedom from want, and freedom from fear, as described by President Franklin D. Roosevelt during his January 6, 1941, State of the Union address.
Franklin Roosevelt
The 32nd President of the United States (1933-1945), known for leading the country during the Great Depression and World War II.
Cold War
A period of geopolitical tension between the Soviet Union and the United States and their respective allies, from the late 1940s to 1991, without direct military conflict.
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