What did Samuel discover and where did he land?

Samuel Langhorne Clemens, better known as Mark Twain, is famous for his literary works rather than any discoveries. However, if you are referring to Samuel Adams, he was a key figure in American history who helped to organize resistance against British rule. In the context of exploration, Samuel de Champlain was a French explorer who is known for founding Quebec in Canada. If you meant a different Samuel, please provide more details for a more accurate answer.