The National Day is a designated date on which celebrations mark the nationhood of a nation or non-sovereign country. This nationhood can be symbolized by the date of independence, of becoming republic or a significant date for a patron saint or a ruler (birthday, accession, removal, etc.). Often the day is not called "National Day" but serves and can be considered as one. The National Day will often be a national holiday.
Some countries have more than one National Day. For example, Pakistan has three National Days, none of which is named the ”National Day”. This signals the use of a ”class” of National Days, that are equally important in the foundation of the nation, and a ”class” of less important official public holidays.
(... from Wikipedia on 2012-04-17 23:59:39)
Mole Day is an unofficial holiday celebrated among chemists on October 23, between 6:02 AM and 6:02 PM, making the date 6:02 10/23 in the American style of writing dates. The time and date are derived from Avogadro's number, which is approximately 6.02×1023, defining the number of particles (atoms or molecules) in one mole of substance, one of the seven base SI units.
Mole Day originated in an article in The Science Teacher in the early 1980s. Inspired by this article, Maurice Oehler, now a retired high school chemistry teacher from Prairie du Chien, Wisconsin, founded the National Mole Day Foundation (NMDF) on May 15, 1991.
(... from Wikipedia on 2012-04-17 16:08:42)
Sukkot (Hebrew: סוכות or סֻכּוֹת, sukkōt, or sukkos, Feast of Booths, Feast of Tabernacles) is a Biblical holiday celebrated on the 15th day of the month of Tishrei (late September to late October). It is one of the three biblically mandated festivals Shalosh regalim on which Hebrews were commanded to make a pilgrimage to the Temple in Jerusalem.
The holiday lasts seven days (eight in the diaspora). The first day is a sabbath-like yom tov when work is forbidden, followed by the intermediate Chol Hamoed and Shemini Atzeret. The Hebrew word sukkōt is the plural of sukkah, "booth or tabernacle", which is a walled structure covered with skhakh (plant material such as leafy tree overgrowth or palm leaves). The sukkah is intended as a reminiscence of the type of fragile dwellings in which the Israelites dwelt during their 40 years of travel in the desert after the Exodus from slavery in Egypt. Throughout the holiday meals are eaten inside the sukkah and many sleep there as well. On each day of the holiday, members of the household recite a blessing over the lulav and etrog (Four species).
(... from Wikipedia on 2012-04-17 06:18:06)