What industry had the greatest impact on the economy in the 1920's

after the aryan's settled in india they changed for the better i bellieve they changed from nomads having to keep moving to being farmers   they were aswell avaible to turn the ganges river into farmland.   which is great they added a big affect on farming as we know of it today.

solon did not have any courts in ancient rome. he was an athenian statesman, not a roman one?

d gerrymandering is the correct answer