Step 1 : Introduction to the question "What is the nickname of the only U.S. president born on the 4th of July?"
...John Calvin Coolidge, the 30th President of the United States, was born on July 4, 1872. Coolidge was elected as the 29th Vice President in 1920 and succeeded to the Presidency upon the sudden death of Warren G. Harding in 1923. He is the only U.S. President to be born on Independence Day. Coolidge was known for his quiet demeanor, which earned him the nickname "Silent Cal." During Coolidge's presidency, the United States experienced the period of rapid economic growth that characterized the "Roaring Twenties."
Step 2 : Answer to the question "What is the nickname of the only U.S. president born on the 4th of July?"
Please let us know as comment, if the answer is not correct!