1998: Space Shuttle Flight 93 (STS-88) Endeavour (NASA)
SPACE LEGO - assembly of the ISS
The process of assembling the International Space Station (ISS) has been underway since the 1990s. Zarya, the first ISS module, was launched by a Proton rocket on 20 November 1998. The STS-88 shuttle mission followed two weeks after Zarya was launched, bringing Unity, the first of three node modules, and connecting it to Zarya. This bare 2-module core of the ISS remained unmanned for the next one and a half years, until in July 2000 the Russian module Zvezda was added, allowing a maximum crew of two astronauts or cosmonauts to be on the ISS permanently.