By: Caulen Kress
March 13, 2008 08:17 AM

Well, it finally happened. After a good year or two of age-induced anxiety, I turned 30 last month. Actually, I wasn't as consumed by the thought of being done with my 20s as it sounds. After all, the measurement of time and its practical use (calendars) differs around the world. Here in the US (and most of the world), we use the Gregorian calendar (which was created in the 16th century). There are plenty of calendars that are dictated  by the sun or moon, including the Persian calendar (500 years older than the Gregorian), whose New Year is celebrated on the first day of Spring. And, even though I'm not a huge Star Wars fan, it's funny to note that there is a calendar based on the epic. It is a lot to take in, so you can check it out here.