On a Saturday in 1973 at about 8:56 in the morning, right after Super Friends on ABC, kids were introduced to a new hero, Zero.

This was the first appearance of Multiplication Rock, brought to you by Nabisco ("You’ll find quality in our corner"). It was the beginning of Schoolhouse Rock, which taught millions of kids across the country multiplication, grammar, history, science, and finances.

So let’s all take a few minutes and watch the video for the first song written for the project, and give thanks for all those lessons learned– it’s okay to sing along, you know how it goes: