One of my ancestors invented the metric system.... grandparent history math science seeing Please Rate Vote 1 Vote 2 Vote 3 Vote 4 Vote 5 Today's featured daily humor:One of my ancestors invented the metric system. I call him gram-pa!Click for another laugh! Previous article: What do you call small glowing insects?... Prev Next article: Two kids sitting in a restaurant were arguing over what a pot was full of on the table.... Next