On 12 December 1970, a Diamant B rocket launched the French PĂ©ole satellite into orbit. Diamant was the first exclusively French expendable launch system and the first satellite launcher not built by either the USA or the Soviet Union. Diamant A was first launched in 1965, and the Diamant B was an improved version of the Diamant A with a more powerful first stage, first launched in March 1970.