Which example best defines a historical era? A A collection of art by a world-renowned artist
B A period of time characterized by certain political, social, or economic events
C A genre of music specific to a region of a country
D A piece of landmark legislation passed during a congressional session

Primary sources are usually  more accurate and are written by someone who experienced it or witnessed it. secondary sources are those who heard of it after the fact that can lose details and or twist the event in a light that benefits them.

The embargo act of 1807  was a law passed by the united state congress and signed by president thomas jefferson on december 22,  1807. it prohibited american ships from trading in all foreign ports. in 1806, france passed a law that prohibited trade between neutral parties, like the u.s., and britain.