What is horizontal integration?

Atch the terms with their definitions. 1. power-hungry militants who grabbed absolute control by force "direct democracy" 2. set the rules and maintained authority within the city-state nobles 3. first name given to the greek democracy solon 4. lofty, financially well-to-do citizens who carried much power within the community assembly 5. in 594 b.c. he was chosen as an athenian statesman with reformation powers tyrants

How did political revolutions in the atlantic ocean basin affect or alter the institution of slavery and the lives of slaves

Who did the first work in creating vaccines