Sex equality
Two women were at the forefront of the pioneering age of aviation, defying the doubters to achieve their places in history.
Amy Johnson (top) flew from England to Australia in 1930, the first woman to complete the journey solo. Her epic flight in her Gypsy Moth lasted 19 days.
Two years later America's Amelia Earhart, who had already become the first woman to fly across the Atlantic, became the first female to do the journey solo. Johnson died in an air crash in 1941; Earhart was never found after her plane disappeared in 1937.