What is Barack Obama Keynote Address At The Democratic National Convention, Boston, all about? Give 5 sentence to get brainist.

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.