Babylonian calendarThe Babylonian calendar was a lunisolar calendar with years consisting of 12 lunar months, each beginning when a new crescent moon was first sighted low on the western horizon at sunset, plus an intercalary month inserted as needed by decree. The calendar is based on a Sumerian (Third Dynasty of Ur) predecessor preserved in the Umma calendar of Shulgi (c. 21st century BC). The year begins in spring, and is divided into 12 months. The word for "month" was arḫu (construct state araḫ).
IyarIyar (אִייָר or אִיָּר, Standard ʾĪyyar Tiberian ʾĪyyār; from 𒌗𒄞 itiayari "rosette; blossom") is the eighth month of the civil year (which starts on 1 Tishrei) and the second month of the Jewish religious year (which starts on 1 Nisan) on the Hebrew calendar. The name is Babylonian in origin. It is a month of 29 days. Iyar usually falls in April–May on the Gregorian calendar. In the Hebrew Bible, before the Babylonian captivity, the month was called Ziv (, ). Ziv is a Hebrew word that means "light" or "glow".
TishreiTishrei (ˈtɪʃreɪ) or Tishri (ˈtɪʃriː; tīšrē or tīšrī; from Akkadian tašrītu "beginning", from šurrû "to begin") is the first month of the civil year (which starts on 1 Tishrei) and the seventh month of the ecclesiastical year (which starts on 1 Nisan) in the Hebrew calendar. The name of the month is Babylonian. It is a month of 30 days. Tishrei usually occurs in September–October on the Gregorian calendar. In the Hebrew Bible the month is called Ethanim (אֵתָנִים – ), or simply the seventh month.
ShmitaThe sabbath year (shmita; שמיטה, literally "release"), also called the sabbatical year or shǝvi'it (, literally "seventh"), or "Sabbath of The Land", is the seventh year of the seven-year agricultural cycle mandated by the Torah in the Land of Israel and is observed in Judaism. During shmita, the land is left to lie fallow and all agricultural activity, including plowing, planting, pruning and harvesting, is forbidden by halakha (Jewish law).
Rosh ChodeshIn Judaism, Rosh Chodesh or Rosh Hodesh (ראש חודש; trans. Beginning of the Month; lit. Head of the Month) is a minor holiday observed at the beginning of every month in the Hebrew calendar, marked by the birth of a new moon. Rosh Chodesh is observed for either one or two days, depending on whether the previous month contained 29 or 30 days. The Book of Exodus establishes the new moon of Nisan, which is the first month of Aviv, as the beginning of the Hebrew calendar: And the spoke unto Moses and Aaron in the land of Egypt, saying: "This month shall mark for you the beginning of the months; it shall be the first of the months of the year for you.
AvAv (also Menachem Av, ) is the eleventh month of the civil year and the fifth month of the ecclesiastical year on the Hebrew calendar. It is a month of 30 days, and usually occurs in July–August on the Gregorian calendar. The Babylonian Talmud states that "when we enter [the month of] Av, our joy is diminished". This is because the darkest events in Jewish history occurred during the first week and a half of this month, particularly the Nine Days which culminate in Tisha B'Av, the 9th day of Av.
KislevKislev or Chislev (Hebrew: כִּסְלֵו, Standard Kīslev Tiberian Kīslēw), also 'Chisleu' in the King James (authorized English) Bible, is the third month of the civil year and the ninth month of the ecclesiastical year on the Hebrew calendar. In the Babylonian calendar its name was Araḫ Kislimu. In a regular (kesidran) year Kislev has 30 days, but because of the Rosh Hashanah postponement rules, in some years it can lose a day to make the year a "short" (chaser) year.
Jewish astrologyAstrology in Jewish antiquity (מזלות = mazzalot) is the belief that celestial bodies can influence the affairs of individuals and of entire nations upon the earth. This involves the study of the celestial bodies' respective energies based on recurring patterns that change by the hour, by the week, month, year or by several years (time categories). In each of these time categories one of the seven planetary spheres, or what are known as the seven classical planets: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, or Mars, along with the month's current Zodiac constellation, come into play and influence the sublunary world.
Byzantine calendarThe Byzantine calendar, also called the Roman calendar, the Creation Era of Constantinople or the Era of the World (Ἔτη Γενέσεως Κόσμου κατὰ Ῥωμαίους, also Ἔτος Κτίσεως Κόσμου or Ἔτος Κόσμου, abbreviated as ε.Κ.; literal translation of Ancient Greek Roman year since the creation of the universe), was the calendar used by the Eastern Orthodox Church from c. 691 to 1728 in the Ecumenical Patriarchate. It was also the official calendar of the Byzantine Empire from 988 to 1453 and of Kievan Rus' and Russia from c.
ChametzChametz (also chometz, , ḥameṣ, ḥameç and other spellings transliterated from חָמֵץ / חמץ; χaˈmets) are foods with leavening agents that are forbidden on the Jewish holiday of Passover. According to halakha, Jews may not own, eat or benefit from chametz during Passover. This law appears several times in the Torah; the punishment for eating chametz on Passover is the divine punishment of kareth (cutting off). Chametz is a product that is both made from one of five species and has been combined with water and left to stand raw for longer than eighteen minutes (according to most opinions) and becomes leavened.
