Calvin Coolidge (1872 - 1933) was the 30th president of the United States, serving from 1923 to 1929. During his presidency, Coolidge restored public confidence in the White House after the Harding administration's many scandals. He signed into law the Indian Citizenship Act of 1924, which granted U.S. citizenship to all Native Americans, and oversaw a period of rapid and expansive economic growth known as the "Roaring Twenties", leaving office with considerable popularity.