1970s

https://docs.google.com/presentation/d/e/2PACX-1vQML4Q1Ns2-ZAk--vL-HKgxSqZV7O8v-ZdXXi3jUy5SKHY8GT2yoK7Pmd61FBq-ghLuFwgYrqeRRFD0/pub?start=true&loop=true&delayms=3000