What were quills made out of, and what were they used for

Goose feathers were most common, some were also made from other birds but not as common and usually more expensive. They were used as a writing tool.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.

chemicals that are toxic to plants