Which event took place first? a. battle of concord b. battle of lexington c. british retreat to boston d. paul revere's ride god bless : -)

It appears A. and B. took place on the same date, April 19, 1775, but those two were the earliest, and for D., the poem was published on 1781, but it is based on the actions of Paul Revere on April 18, 1775. So, if you mean the poem, A./B. is the answer, but if it the actions, it would be D.

Joke: i thought it said drake and josh at first answer: probably unsure about this law. depending on how long the time is.