Calvin Coolidge was the 30th president of the United States, serving from 1923 to 1929. A Republican lawyer from Massachusetts, he had served as the 29th vice president from 1921 to 1923, under President Warren G. Harding, and as the 48th governor of Massachusetts from 1919 to 1921. Coolidge gained a reputation as a small-government conservative, with a taciturn personality and dry sense of humor that earned him the nickname "Silent Cal".