British Interplanetary Society
The British Interplanetary Society (BIS), founded in Liverpool in 1933 by Philip E. Cleator, is the oldest existing space advocacy organisation in the world. Its aim is exclusively to support and promote astronautics and space exploration. Provided by Wikipedia-
1by Symposium on Space Communication for Education Purposes, Southampton, UK, 1972, British Interplanetary Society, Sommerlad, E. Lloydprogramme and meeting document bibliotecaUNESCO