From this lesson, what factor has changed the world's political boundaries?
famine
decolonization
civil war
earthquakes

april 18, 1775, hundreds of british troops marched from boston to nearby concord in order to seize an arms cache.a confrontation on the lexington town green started off the fighting, and soon the british were hastily retreating under intense fire.

on april 19, 1775, american militia gathered to stop a british company sent from boston to capture supplies allegedly amassed in lexington, massachusetts. the militia fled, and the british left after not finding the supplies.

i would go with the last one

joseph stalin's cult of personality became a prominent part of soviet culture in december 1929, after a lavish celebration for stalin's 50th birthday.[answer:

explanation:

people had jobs and began to work. that’s why the commercial revolution was great.