Slash and burn agriculture would have been practiced most prominently in the river valleys of Egypt, since this is were lots of plant life existed, which needed to be eliminated to make room for fields.
The depression originated in the United States, after a fall in stock prices that began around September 4, 1929, and became worldwide news with the stock market crash of October 29, 1929 (known as Black Tuesday). Between 1929 and 1932, worldwide GDP fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II.
1 is the spread of slavery, but I'm not sure about 2
100% sure its the 1896 election of McKinley :)
18 year olds were granted the right to vote via the 26th Amendment
