Happenings Ten Years Time Ago

"Happenings Ten Years Time Ago" is a song by the English rock group the Yardbirds. Written and recorded in 1966, it is considered one of their most progressive works. The song was the group's first to feature the dual-lead guitar line-up of Jeff Beck and Jimmy Page. The two contribute an array of guitar parts during the instrumental sections, described as "a full-on six-string apocalypse". Lyrically, it deals with notions of past life and déjà vu.

The song was released as a single and received mixed reviews and was less commercially successful than the group's previous efforts. More recently, it has been acknowledged for its inventiveness and contribution to the early development of psychedelic music. Several elements of the song have influenced songs by other musicians.