What is Jon erlandson stating about the migration of people in America

Explanation:

Jon M. Erlandson is a famous archaeologist in the University of Oregon. He specializes in anthropology and his research interests included maritime archaeology, coastal adaptations, the impacts of the human in the coastal adaptation and  peopling of North America.

Jon Erlanson states the theory of the boats that helped spread of the anatomically modern humans to the coastal regions in America. He founded the Daisy Cave, 12500 BP in channel islands which suggested the use of the boats.

According to his coastal migration theory, he suggested that people had traveled down to Canada coast and also to California with some sort of sea craft most likely.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.