A year elapsed after the first successful flight at Kitty Hawk before
the aviator became able to describe a circle in the air. A later date,
1907, is recorded for the first European half-circular flight: and the
first complete circuit, on the other side of the water, was made a year
after that; by both biplane and monoplane. It was in the same year that
Louis Blériot made the pioneer cross-country trip of twenty-one miles,
stopping at will _en route_ and returning to his starting point.