Ancient egyptian astronomers studied the stars to

predict the flooding of the nile river
create new medicines from plants
appoint the next pharaoh
create a new writing system

danielu suge pula

explanation:

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation:

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.