drop into a year, no hindsight
Pick a year, or roll one, and see it the way the people living through it saw it. Headlines, music, film, technology, the cultural moment, and deliberately no hindsight: no "of course this led to", no knowing what came next, because they did not know either.
It is built as a periodical, one edition per year, and it is more useful than it sounds for understanding why people made decisions that look obviously wrong from here. Free, runs in the browser, nothing stored anywhere but your own device.
Built by Elijah Purcell at Purcell Ventures LLC, a software company in Tuscaloosa, Alabama. His other free tools are indexed at purcellventures.co/tools.