Name the 4 Early River Valley Civilizations - and include the name of the associated rivers where they're located. [Note: A) The Huang He is also called the Yellow River. B) Although the Yangtze (also called the Chang Jiang) isn't identified on the map below, it also flows into the basin where the Chinese dynasties began.]

Where did the term “iron curtain” originate? the warsaw pact used the term iron curtain as a code word for communism. in a 1946 speech, british prime minister winston churchill said an iron curtain had fallen across the continent of europe. while visiting western europe in 1946, u.s. president harry truman commented that the mountains there looked like iron curtains. russian general secretary joseph stalin instructed citizens of eastern europe to hang iron curtains over their windows to protect themselves from stray bullets.