Kansas released its fourth album, Leftoverture, in October 1976, which produced a hit single, "Carry On Wayward Son", in 1977. The follow-up, Point of Know Return, recorded at Studio in the Country and Woodland Sound in Nashville and released in October 1977, featured the title track and "Dust in the Wind", both hit singles. Leftoverture was a breakthrough for the band, hitting No. 5 on Billboard's pop album chart. Point of Know Return peaked even higher, at No. 4. Leftoverture and Point each sold over four million copies in the U.S. Both "Carry On Wayward Son" and "Dust in the Wind" were certified gold singles, selling over one million units each. "Dust in the Wind" was certified gold as a digital download by the RIAA in 2005, almost 30 years after selling one million copies as a single. Leftoverture was eventually certified five-times platinum by the RIAA in 2001.

Answer this question based on the passage: when did carry on my wayward son come out? Let's have some stream of consciousness first.
The relevant information is: Kansas released its fourth album, Leftoverture, in October 1976, which produced a hit single, "Carry On Wayward Son", in 1977. So, the answer is October 1976.