Strange Noises

Someone from my paranormal team just posted one of those old clips on my facebook the other day. Stuff does sound creepy as heck. Being back from 2011, you think more people would have linked it back to the whole 2012 end of the world scare. Anyway, my mom said that when she was a kid that she remembers hearing sounds just like them once and it freaked out her and the other neighborhood kids...so that would have been like 40+ years ago. I wonder how many of other accounts go back farther than the recent ones?