What two uses did the olmec get out of the asphalt

Olmecs have found out the way of making asphalt. Actually, they could indentify and take it from many different sources and was considered a high-valued asset. Olmecs would use asphalt for sealing and fixing wooden boats and commercializing with others.

i would go with the last one

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south