The Brezhnev Doctrine began to crumble as the communist system in both Eastern Europe and in the Soviet Union began to falter in the mid-1980s. The Soviet communist economy was horribly inefficient and rife with corruption, and the Soviet Union experienced significant financial hardship after Brezhnev's death.
Some advantages were that the states were able to expand into what once was Native American territory. Disadvantages were the obvious moral issues in decreeing that you are not allowed to live in a place where your background has been for hundreds and thousands of years.
Because Congress has the power to decide if we go to war or not
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The space suit
Though the first man stepped on the moon in 1969, in the 1930s astronomers and physicists were already planning for the voyage to outer space. Emilio Herrera Linares, a Spanish military colonel, is credited with being the first to design a pressurised suit which was used in a high-altitude balloon flight in 1936.
The modern mop
While the mop isn’t the most glamorous of inventions, it certainly is one of the most useful. People had been using rags to wash floors since the 15th century but it was in the 1960s that the engineer Manuel Jalón Corominas had the idea to create a purpose-built mop with a bucket to ring the water out in.
Explanation:
that's just a few ^_^!!!
The middle passage. Hope this helps!
