How did Robert Peary and Matthew Henson reach the North Pole?
At first, the group journeyed about ten miles a day. At night, they slept in snug igloos built from blocks of snow. But after traveling 45 miles, Peary was halted by a jagged crack of black sea that snaked for miles through the ice. Peary called it the “Big Lead” and waited impatiently for it to freeze over or for the ice to clo
