Somewhere in the world there must be a person turning ten years old on this day, perhaps even someone actually born at 10:10 in the morning. Happy Birthday to you! It’s a special one.
In honor of this day, here is a page from my daughter’s first grade homeschooling main lesson book, Numbers. I don’t know about you, but I am perfectly content to be living in a base-ten number world, with the ten represented by a one followed by a zero. And it was not a foregone conclusion. We could be living in a base-twenty world, like the ancient Mayan, Aztec, Celtic, and Germanic peoples (remnants of which groupings by twenty survive in some modern European counting systems). Or a base-sixty world, like the Babylonians. Or, we could be using base ten but still be lumbering along in lengthy strings of Roman numerals, with nary a zero to be seen. And the computer would never have been born.