Hi I need help finding a answer if u don’t mind

What would be considered a secondary source about the assasination of abraham lincoln

What was one of john adams's accomplishments? riding to warn leaders that the british were coming leading troops at bunker hill writing the major part of the declaration of independence defending british soldiers on trial after the boston massacre

Hay's policy concerning trading rights in china was the: a. protectionist policy b. open-door policy c. square deal