| Sizdah Bedar | |
|---|---|
 Iranians in the Netherlands celebrating Sizdah Bedar, April 2011 | |
| Observed by |  Iran[citation needed] |
| Celebrations | Picnicking outdoors |
| Date | April 1 or April 2 |
| Frequency | annual |
| Related to | Nowruz, Charshanbe Suri |
Sizdah Bedar (Persian: سیزدهبدر – sīzdah bedar),[1][2] (lit. 'Thirteen outdoor') also known as Nature's Day (روز طبیعت – rūz-e tabī'at),[citation needed] is an Iranian festival held annually on the thirteenth day of Farvardin, the first month of the Iranian calendar (and the first month of spring, during which people spend time picnicking outdoors.[1] It marks the end of the Nowruz holidays in Iran.[3]
- ^ a b Shahbazi, A. Shapur. "NOWRUZ ii. In the Islamic Period". Encyclopædia Iranica. Retrieved January 8, 2012.
- ^ Mosaheb, Gholamhossein, ed. (2002) [1966]. "سیزدهبدر" [Sizde be.dar]. The Persian Encyclopedia (in Persian). Vol. 1 (2nd ed.). Tehran: Amirkabir. p. 1404. ISBN 964303044X.
- ^ "Iranians mark Sizdah Bedar in nature". mypersiankitchen. April 2, 2010.