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18th Century In Peru
18 (eighteen) is the natural number following 17 and preceding 19. It is an even composite number. Mathematics 18 is a semiperfect number and an abundant number. It is a largely composite number, as it has 6 divisors and no smaller number has more than 6 divisors. There are 18 one-sided pentominoes. In the classification of finite simple groups, there are 18 infinite families of groups. In science Chemistry * The 18-electron rule is a rule of thumb in transition metal chemistry for characterising and predicting the stability of metal complexes. In religion and literature * The Hebrew word for "life" is ('' chai''), which has a numerical value of 18. Consequently, the custom has arisen in Jewish circles to give donations and monetary gifts in multiples of 18 as an expression of blessing for long life. * In Judaism, in the Talmud; Pirkei Avot (5:25), Rabbi Yehudah ben Teime gives the age of 18 as the appropriate age to get married (''"Ben shmonah esra lechupah"'', at eigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octodecimal
There are many different numeral systems, that is, writing systems for expressing numbers. By culture / time period "A ''base'' is a natural number B whose ''powers'' (B multiplied by itself some number of times) are specially designated within a numerical system." The term is not equivalent to radix, as it applies to all numerical notation systems (not just positional ones with a radix) and most systems of spoken numbers. Some systems have two bases, a smaller (subbase) and a larger (base); an example is Roman numerals, which are organized by fives (V=5, L=50, D=500, the subbase) and tens (X=10, C=100, M=1,000, the base). By type of notation Numeral systems are classified here as to whether they use positional notation (also known as place-value notation), and further categorized by radix or base. Standard positional numeral systems The common names are derived Hexadecimal#Etymology, somewhat arbitrarily from a mix of Latin and Greek language, Greek, in some cases incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rule Of Thumb
In English language, English, the phrase ''rule of thumb'' refers to an approximate method for doing something, based on practical experience rather than theory. This usage of the phrase can be traced back to the 17th century and has been associated with various Trade (occupation), trades where quantities were measured by comparison to the width or length of a thumb. An erroneous folk etymology began circulating in the 1970s falsely connecting the origins of the phrase "rule of thumb" to legal doctrine on Domestic violence, domestic abuse. The error appeared in a number of law journals, and the United States Commission on Civil Rights published a report on domestic abuse titled "Under the Rule of Thumb" in 1982. Some efforts were made to discourage the phrase, which was seen as taboo owing to this false origin. During the 1990s, several authors correctly identified the spurious folk etymology; however, the connection to domestic violence was still being cited in some legal sources ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amidah
The ''Amidah'' (, ''Tefilat HaAmidah'', 'The Standing Prayer'), also called the ''Shemoneh Esreh'' ( 'eighteen'), is the central prayer of Jewish liturgy. Observant Jews recite the ''Amidah'' during each of the three services prayed on weekdays: Morning (''Shacharit''), afternoon ('' Mincha''), and evening ('' Ma'ariv''). On Shabbat, Rosh Chodesh ("Beginning of the Month"), and Jewish festivals, a fourth ''Amidah'' ('' Mussaf'') is recited after the morning Torah reading. Once annually, a fifth ''Amidah'' ('' Ne'ilah'') is recited around sunset on Yom Kippur. Due to the importance of the ''Amidah'', in rabbinic literature, it is simply called "''hatefila''" (, "the prayer"). According to legend, the prayer was composed by the "Men of the Great Assembly" (''Anshei Knesset HaGedolah''; –332 BCE). However, the fact that the prayer contains, next to Biblical Hebrew, many mishnaic terms, leads to the conclusion that it was composed and compiled during the mishnaic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Age Of Majority
The age of majority is the threshold of legal adulthood as recognized or declared in law. It is the moment when a person ceases to be considered a minor (law), minor, and assumes legal control over their person, actions, and decisions, thus terminating the control and legal responsibilities of their parents or guardian over them. Most countries set the age of majority at 18, but some jurisdictions have a higher age and others lower. The word ''majority'' here refers to having greater years and being of full age as opposed to ''minority'', the state of being a minor. The law in a given jurisdiction may not actually use the term "age of majority". The term refers to a collection of laws bestowing the status of adulthood. Explanation The term ''age of majority'' can be confused with the similar concept of the ''age of license''. As a legal term, ''license'' means ''permission'', referring to a legally enforceable right or privilege. Thus, the age of license for a specific activit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coming Of Age
Coming of age is a young person's transition from being a child to being an adult. The specific age at which this transition takes place varies between societies, as does the nature of the change. It can be a simple legal convention or can be part of a ritual or spiritual event. In the past, and in some societies today, such a change is often associated with the age of sexual maturity ( puberty), especially menarche and spermarche. In others, it is associated with an age of religious responsibility. Particularly in Western societies, modern legal conventions stipulate points around the end of adolescence and the beginning of early adulthood (most commonly 16 and 18 though ranging from 14 to 21) when adolescents are generally no longer considered minors and are granted the full rights and responsibilities of an adult. Some cultures and countries have multiple coming of age ceremonies for multiple ages. Many cultures retain ceremonies to confirm the coming of age, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chupah
A ''chuppah'' (, ) is a canopy under which a Judaism, Jewish couple stand during their Jewish wedding, wedding ceremony. It consists of a cloth or sheet, sometimes a tallit, stretched or supported over four poles, or sometimes manually held up by attendants to the ceremony. A chuppah symbolizes the home that the couple will build together. In a more general sense, ''chuppah'' refers to the method by which ''nessuin'', the second stage of a Jewish wedding, is accomplished. According to some opinions, it is accomplished by the couple standing under the canopy along with the rabbi who weds them; however, there are other views., Chapter 18 Customs A traditional chuppah, especially in Orthodox Judaism, recommends that there be open sky exactly above the chuppah, although this is not mandatory among Sephardic communities. If the wedding ceremony is held indoors in a hall, sometimes a special opening is built to be opened during the ceremony. Many Hasidic Judaism, Hasidim prefer t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirkei Avot
Pirkei Avot (; also transliterated as ''Pirqei Avoth'' or ''Pirkei Avos'' or ''Pirke Aboth'', also ''Abhoth''), which translates into English as Chapters of the Fathers, is a compilation of the ethical teachings and maxims from Rabbinic Jewish tradition. It is part of didactic Jewish ethical literature. Because of its contents, the name is sometimes given as Ethics of the Fathers. Pirkei Avot consists of the Mishnaic tractate of ''Avot'', the second-to-last tractate in the order of Nezikin in the Mishnah, plus one additional chapter. Avot is unique in that it is the only tractate of the Mishnah dealing ''solely'' with ethical and moral principles; there is relatively little halakha (laws) in Pirkei Avot. Translation of the title In the title ''Pirkei Avot'', the word "pirkei" is Hebrew for "chapters of". The word ''avot'' means "fathers", and thus ''Pirkei Avot'' is often rendered in English as "Chapters of the Fathers", or (more loosely) "Ethics of the Fathers". This tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Talmud
The Talmud (; ) is the central text of Rabbinic Judaism and the primary source of Jewish religious law (''halakha'') and Jewish theology. Until the advent of Haskalah#Effects, modernity, in nearly all Jewish communities, the Talmud was the centerpiece of Jewish culture, Jewish cultural life and was foundational to "all Jewish thought and aspirations", serving also as "the guide for the daily life" of Jews. The Talmud includes the teachings and opinions of thousands of rabbis on a variety of subjects, including halakha, Jewish ethics, Jewish philosophy, philosophy, Jewish customs, customs, Jewish history, history, and Jewish folklore, folklore, and many other topics. The Talmud is a commentary on the Mishnah. This text is made up of 63 Masekhet, tractates, each covering one subject area. The language of the Talmud is Jewish Babylonian Aramaic. Talmudic tradition emerged and was compiled between the destruction of the Second Temple in 70 CE and the Arab conquest in the early seve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Judaism
Judaism () is an Abrahamic religions, Abrahamic, Monotheism, monotheistic, ethnic religion that comprises the collective spiritual, cultural, and legal traditions of the Jews, Jewish people. Religious Jews regard Judaism as their means of observing the Mosaic covenant, which they believe was established between God in Judaism, God and the Jewish people. The religion is considered one of the earliest monotheistic religions. Jewish religious doctrine encompasses a wide body of texts, practices, theological positions, and forms of organization. Among Judaism's core texts is the Torah—the first five books of the Hebrew Bible—and a collection of ancient Hebrew scriptures. The Tanakh, known in English as the Hebrew Bible, has the same books as Protestant Christianity's Old Testament, with some differences in order and content. In addition to the original written scripture, the supplemental Oral Torah is represented by later texts, such as the Midrash and the Talmud. The Hebrew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gematria
In numerology, gematria (; or , plural or ) is the practice of assigning a numerical value to a name, word, or phrase by reading it as a number, or sometimes by using an alphanumeric cipher. The letters of the alphabets involved have standard numerical values, but a word can yield several values if a cipher is used. According to Aristotle (384–322 BCE), isopsephy, based on the Milesian numbering of the Greek alphabet developed in the Greek city of Miletus, was part of the Pythagorean tradition, which originated in the 6th century BCE. The first evidence of use of Hebrew letters as numbers dates to 78 BCE; gematria is still used in Jewish culture. Similar systems have been used in other languages and cultures, derived from or inspired by either Greek isopsephy or Hebrew gematria, and include Arabic abjad numerals and English gematria. The most common form of Hebrew gematria is used in the Talmud and Midrash, and elaborately by many post-Talmudic commentators. It inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chai (symbol)
Chai or Hai ( "living" ') is a symbol that figures prominently in modern Jewish culture; the Hebrew letters of the word are often used as a visual symbol. History According to '' The Jewish Daily Forward'', its use as an amulet originates in 18th century Eastern Europe. Chai as a symbol goes back to medieval Spain. Letters as symbols in Jewish culture go back to the earliest Jewish roots, the Talmud states that the world was created from Hebrew letters which form verses of the Torah. In medieval Kabbalah, Chai is the lowest (closest to the physical plane) emanation of God.Pelaia, Ariela.What Does the Chai Symbol Signify for Jews? ThoughtCo. (accessed March 9, 2018). According to 16th century Greek rabbi Shlomo Hacohen Soloniki, in his commentary on the Zohar, Chai as a symbol has its linkage in the Kabbalah texts to God's attribute of 'Ratzon', or motivation, will, muse. A related number of Ratzon is 60, which is the minimum level of the Divine will. Two common Jewish name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hebrew Language
Hebrew (; ''ʿÎbrit'') is a Northwest Semitic language within the Afroasiatic language family. A regional dialect of the Canaanite languages, it was natively spoken by the Israelites and remained in regular use as a first language until after 200 CE and as the liturgical language of Judaism (since the Second Temple period) and Samaritanism. The language was revived as a spoken language in the 19th century, and is the only successful large-scale example of linguistic revival. It is the only Canaanite language, as well as one of only two Northwest Semitic languages, with the other being Aramaic, still spoken today. The earliest examples of written Paleo-Hebrew date back to the 10th century BCE. Nearly all of the Hebrew Bible is written in Biblical Hebrew, with much of its present form in the dialect that scholars believe flourished around the 6th century BCE, during the time of the Babylonian captivity. For this reason, Hebrew has been referred to by Jews as '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
