I released Numberpile on April 26, 2001, as a simple tool for adding circled numerals to maps and diagrams. The first version included 80 circled numbers and was distributed with a free commercial-use desktop license. Accessing them wasn’t straightforward; I supplied a chart to help, but typing beyond the lower ranges was awkward.

Later, I updated the font with OpenType functionality. This allowed users to type a number in parentheses and have it automatically convert to a circled numeral, up to 200. That version also included some cleaned-up outlines, making the characters sharper and more consistent. The improvement made the font much easier to use in practice.

In November 2022, I moved Numberpile into the public domain. By then, it had no paid companion styles, and I was gradually transitioning standalone free fonts into open licensing. I never saw it appear in any notable projects, but it filled a functional role for anyone who needed circled numbers in a simple, direct format.