Before the Civil War, Philadelphia was a center of

Before the Civil War, Philadelphia was a center of  shipyards and manufacturing.

Explanation:

At the beginning of the 19th century, Philadelphia experienced an important economic growth thanks to its agricultural and mining wealth; the construction of routes, canals and railroads allowed the city to maintain its privileged position in the industrial revolution. The textile industry, the confection, the metallurgy, the manufacture of paper and of railway material, the naval construction in the shipyards and the agricultural industry were the main industries of the 19th century. Philadelphia was at the same time a financial center of prime importance. During the Civil War, the factories of the city supplied the armies of the Union.

people are just afraid of difference. honestly no where in the bible does it say you can't be gay or bi or anything it says he loves all his children the same and he wants the best for us but we need to be truthful and all that yadda yadda anyways, god doesn't hate gays, he does hate hate, hypocrites, liars, and all that and even then he forgives those who ask for it. so your mum's reasoning is totally wrong xd sorry love, i had to rant a bit but i hate it when people do that. if anything i accept you! stay amazing! ^-^