Events of the 1920's?

i need three events that happened each year between 1920 and 1929...three things for each year they can be anything that information can be found about...thanks 10 pts for the most events

Events of the 1920's?
In 1921 Warren G. Harding is the new president. 1920 women's first vote. 1923 Calvin Coolidge is president. 1929 Herbert Hoover is president. 1929 economic crash better known as the great depression, the stock market crashed, banks closed, the dust bowl. The invention of the radio.