Ameliorate Paul Revere

Directions: grammatically correct the sentence below, in red. There are two missing commas and one misused word.
Paul Revere a Patriot in the American Revolution was best known for his midnight ride too warn of the approach of British military.

Short video about Paul Revere.
Suggested Answer:
Paul Revere, a Patriot in the American Revolution, was best known for his midnight ride to warn of the approach of British military.