postpone trials
51Billings ovulation method — Background Birth control type Behavioral First use developed in 1950 s Failure rates (first year) Perfect use 0 2.9% Typical use 1 …
52Class Reunion (1928 novel) — For other uses of Class Reunion , see Class Reunion (disambiguation). Class Reunion   Author(s) Franz Werfel …
53History of the Luftwaffe 1933 - 1945 — The German Luftwaffe was one of the strongest, doctrinally advanced, and battle experienced air forces in the world when World War II started in Europe in September 1939. Officially unveiled in 1935, in violation of the Treaty of Versailles, its… …
54Spinal disc herniation — Slipped disc redirects here. For other uses, see Slipped disc (disambiguation). Spinal disc herniation Classification and external resources A spinal disc herniation demonstrated via MRI. ICD 10 …
551939 German ultimatum to Lithuania — East Prussia after the ultimatum took force; the Klaipėda Region/Memelland is depicted in blue and East Prussia in pink. 1939 Germa …
56football — /foot bawl /, n. 1. a game in which two opposing teams of 11 players each defend goals at opposite ends of a field having goal posts at each end, with points being scored chiefly by carrying the ball across the opponent s goal line and by place… …
57Haiti — /hay tee/, n. 1. Formerly, Hayti. a republic in the West Indies occupying the W part of the island of Hispaniola. 6,611,407; 10,714 sq. mi. (27,750 sq. km). Cap.: Port au Prince. 2. Also, Hayti. a former name of Hispaniola. * * * Haiti… …
58Mexico — /mek si koh /, n. 1. a republic in S North America. 97,563,374; 761,530 sq. mi. (1,972,363 sq. km). Cap.: Mexico City. 2. a state in central Mexico. 6,245,000; 8268 sq. mi. (21,415 sq. km). Cap.: Toluca. 3. Gulf of, Mexican, Golfo de México /gawl …
59Poland — /poh leuhnd/, n. a republic in E central Europe, on the Baltic Sea. 38,700,291; ab. 121,000 sq. mi. (313,400 sq. km). Cap.: Warsaw. Polish, Polska. * * * Poland Introduction Poland Background: Poland is an ancient nation that was conceived around …
60United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …
