Maria Reiche was born May 15, 1903 in Dresden. She studied mathematics, astronomy, geography and foreign languages at the Dresden Technical University.
In 1932 she began work as a nanny and teacher for the children of a German consul in Cuzco, Peru. In 1934 she lost one of her fingers to gangrene.
The same year she became a teacher in Lima and made scientific translations, as she spoke five languages. When World War II broke out, German citizens were detained in Peru.
In 1940 Reiche became an assistant to the American Paul Kosok, an historian from Long Island University in Brooklyn, New York. Making field studies from 1939–1941 and 1948–49, he is credited as the first Westerner of European descent to seriously investigate the Nazca Lines. He originally studied them in connection with field work on ancient irrigation systems, but quickly concluded they had another purpose.
He noticed lines that converged at the point of the winter solstice in the Southern Hemisphere in June 1941. Together they began to map and assess the lines for their relation to astronomical events.