1.   The solar calendar begs to differ.

2.   Because Islam follows the lunar calendar, which is shorter than the solar calendar, the dates of Ramadan change every year.

3.   It dates back to an effort by Julius Caesar to deal with a slippage of seasons resulting from misuse of the Egyptian solar calendar.

4.   It annoys the people who already feel bullied by the solar calendar.

5.   Kobe Bryant has come of age so many times now, in such a short time span, that his growth spurts are starting to outpace the solar calendar.

6.   The addition of the extra month ensures that holidays stay within the same season on the Gregorian or solar calendar.

7.   They invest the solar calendar with greater, almost superstitious significance.

8.   Since the Muslim calendar is lunar, months are unrelated to the seasons of the sun, and years are shorter than in solar calendars.

9.   Unlike other Muslim Mideast countries, Iran and some of its neighbors follow the Persian solar calendar, which begins on the first day of spring.