 On 21 September 1973, the legal agreement for the L3S, which later became known as the Ariane 1, was signed.Under this agreement, the Europa III was formally cancelled, while the L3S would be developed as a multinational project.From the onset, this new launcher was to be developed for the purpose of sending commercial satellites into geosynchronous orbit, unlike many other competing launchers, which had been typically developed for other purposes and subsequently adapted, such as ballistic missiles.