which american gymnast of puerto rican descent is the first athlete born in the 21st century to win an olympic gold medal?

In an effort to end the civil war, in 1864 the union planned to

How was the method of making pottery by using coils of clay better than simply shaping the clay by hand? it prevented pottery from cracking when fired. it created a watertight seal. it produced more attractive pottery. the pottery could be cut or stamped with designs.

What industry was exempt from the child-labor laws passed in the factory act of 1833?