Calvin Coolidge was the 30th president of the United States, and he served for two terms between the years of 1923 and 1929. He was a member of the Republican Party, and prior to politics, he worked as a lawyer in New England. He worked his way up the ladder, eventually earning him a seat in Massachusetts state politics, which he used to further grow his political career.
He is famous for his response to the Boston Police Strike of 1919, which threw him into the national spotlight and gave him a reputation as a man of decisive action - which is certainly helpful when you are aiming to become the US president. Afterwards, he became governor in his home state, which slowly led him to become the 29th vice president in 1920.