Great thread idea, I am now tempted to write something like this for my own timeframe of when I first started listening to metal and what the most influential albums for me were. Since I am hideously old, I would set the Wayback machine to 1983.
3/8 - Tatesryche
4/10 - Carcass
4/13 - Godflesh
5/9 - Slayer/Suicidal Tendencies/Exodus