Merchant explorer anthony glass traveled up the river to trade goods with american indians at a large trade fair in 1808.

Red

Explanation:

Anthony Glass was a explorer, originally from Pennsylvania, who moved to Louisiana soon after the Revolutionary War. In 1808-09, Glass led a group of traders up the Red River in order to trade with the Taovaya-Wichita people along the river. The group stayed in the region and traded with the natives for three months. Glass's journal survives, and it tells the account of the expedition.

norsemen from northern countries had made earlier journeys

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: