Why was the battle of gaugamela so important to alexander

It was the battle in which his force's defeated the Persian and that gave Alexander control of the Persian Empire. (Ended freedom of Greek city-states, defeated Persian Empire, expanded the economy, spread Greek culture, exposed Greece to Eastern culture)

Explanation:

the committees of correspondence were the american colonies’ means for maintaining communication lines in the years before the revolutionary war. in 1764, boston formed the earliest committee of correspondence to encourage opposition to britain’s stiffening of customs enforcement and prohibition of american paper money. the following year, new york formed a similar committee to keep the other colonies notified of its actions in resisting the stamp act. in 1773, the virginia house of burgesses proposed that each colonial legislature appoint a committee for intercolonial correspondence. the exchanges that followed built solidarity during the turbulent times and bring about the formation of the first continental congress in 1774.