The LEGO Classic Space was introduced in 1978 and was the first space theme. It features sets with peaceful space explorers with no enemies unlike other LEGO space sets. There were 5 astronaut minifigures the wore the same suites but in various colors including blue, red, white, yellow and black.
1981 LEGO Sets
1981 strengthened the bridge from DUPLO to System through Fabuland, featuring animal characters and story-led builds. Town expanded urban life with new services and vehicles, Space continued its exploration motif with larger craft and surface equipment, and 12V Trains saw ongoing refinements for more sophisticated layouts.