Claim: Led Zeppelin released their first album in 1969.
Evidence: Although the group was initially unpopular with critics , they achieved significant commercial success with albums such as Led Zeppelin -LRB- 1969 -RRB- , Led Zeppelin II -LRB- 1969 -RRB- , Led Zeppelin III -LRB- 1970 -RRB- , Led Zeppelin IV -LRB- 1971 -RRB- , Houses of the Holy -LRB- 1973 -RRB- , and Physical Graffiti -LRB- 1975 -RRB-.
Led Zeppelin is the eponymous debut studio album by English rock band Led Zeppelin , released on 12 January 1969 in the United States and on 31 March 1969 in the United Kingdom by Atlantic Records.