| |
| | Roman Calendar -- from Eric Weisstein's World of Astronomy |
 | | The Roman calendar originally started the year with the vernal equinox and consisted of 10 months (Martius, Aprilis, Maius, Junius, Quntilis, Sextilis, September, October, November, and December) having a total of 304 days. |
 | | The numbers still embedded in the last four months of the year are the fossil of this (September, October, November, and December, contain the Latin roots for the numerals seven, eight, nine, and ten,but now fall on the ninth, tenth, eleventh and twelfth months of the year). |
 | | The Roman calendar was eventually supplanted by the more rational Julian calendar in 46 BC. |
| scienceworld.wolfram.com /astronomy/RomanCalendar.html (184 words) |
|