Which event put an end to the concert of europe? a.) the french revolution b.) the greek revolution against turkish rule c.) the haitian revolution d.) the french and indian war

there are two main types of historical sources: primary sources and secondary sources. a primary source is something that originates from the past. it can be a chronicle, a piece of pottery, or even a piece of glacial ice that gives us climate data about the levels of atmospheric carbon one thousand years ago.