when was the first song released?
12 February 1982
Run to the Hills
The song was released as a single on 12 February 1982; more than 5 weeks prior to the album's release on 22 March 1982. 
where does the name iron maiden come from They are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. who were the band members? Harris, Murray, and Sampson. what is the genre of their music? Heavy metal. which are some of their famous songs of all time? "Run to the Hills" and "The Number of the Beast" are two of them. who was the lead guitarist of this band? Steve Harris
wiki:21098610
Run to the Hills [SEP] Original 1982 release
The song was released as a single on 12 February 1982; more than 5 weeks prior to the album's release on 22 March 1982. The single marked Iron Maiden's debut release with new vocalist Bruce Dickinson. "Total Eclipse" was selected as the single's B-side over the song "Gangland", which in turn would appear on the initial version of the album. The band later regretted this decision, with Steve Harris commenting, "We chose the wrong track as the B-side. I think if "Total Eclipse" had been on the album instead of "Gangland", it would have been far better." The song was added to "The Number of the Beast" album when it was remastered in 1998, and was also included in the original Japanese version.