This is how Churchill expressed inability to predict what Soviet Union will at the start of World War 2. The timeline below show why he could be puzzled:
a) August 23, 1939 - Soviet Union and Germany sign non-aggression pact
b) September 1, 1939 - Germany invades Poland (then ally of Britain and France).
c) September 3, 1939 - Britain declares war on Germany as a consequence of German's invasion of Poland.
d) September 17, 1939 - Soviet Union invades eastern Poland. Poland is defeated and partitioned between Germany and Soviet Union.
Therefore from Churchill standpoint: Soviet Union is allied with Germany, whom are at war with Britain. Go figure what Stalin is going to do?
Maya social structure was literally divided between nobles,commoners,serfs and slaves.
In this case, any value given up by not choosing to
<span> spend or save the money is the "opportunity cost", because the money </span>could be spent elsewhere. "trade offs" and opportunity costs are very similar though in economics.
<span>It was the Crusades.
The Crusades was a campaign to regain the Holy Land from the Muslim
invaders after they took it over. Some
came to fight for that goal while others joined to see new lands while some
were after the riches that be taken from that area. Many were promised forgiveness of their sins
if they joined the Crusades. Still, some
of the effects of the Crusade were that the Mediterranean was open to trade as
soldiers and markets were established.
Other effects were that it led to the growth of towns and cities as the
nobility sold their lands to join the Crusades and the people gained their
freedom. Finally with the growth of towns, feudalism was weakened.</span>