Claim: Malcolm Young co-founded AC/DC in July 1973.
Evidence: Malcolm Mitchell Young -LRB- born 6 January 1953 -RRB- is an Australian retired musician and songwriter , best known as a co-founder , rhythm guitarist , backing vocalist and songwriter for the hard rock band AC/DC.
Except for a brief absence in 1988 , he was with the band from its November 1973 beginning until retiring permanently in 2014 , due to health reasons.