Right before the 20's started World War I happened, so many of the young men of the world were apart of that war and saw horrific things. So after the war they wanted to forget so they had as much fun and parties as they could.
Answer:
a thermistor or thermocouple thermometer
The head of the department of state, and traditionally a key advisor to the president on foreign policy.
Santa Claus<span> also has some </span>other names<span>: Saint Nicholas, St. Nick, Kris Kringle, Pelznickel. </span>Two<span> of his </span>names<span> -- </span>Santa Claus<span> and Saint Nicholas -- both come from the Dutch who settled in New York long ago.</span>