Portal:Judaism

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Collection of Judaica (clockwise from top):
Candlesticks for Shabbat, a cup for ritual handwashing, a Chumash and a Tanakh, a Torah pointer, a shofar, and an etrog box.

Judaism (Hebrew: יַהֲדוּת Yahăḏūṯ) is an Abrahamic, monotheistic, and ethnic religion. It comprises the collective spiritual, cultural, and legal traditions of the Jewish people, having originated as an organized religion in the Middle East during the Bronze Age. Contemporary Judaism evolved from Yahwism, the cultic religious movement of ancient Israel and Judah, around the 6th/5th century BCE, and is thus considered to be one of the oldest monotheistic religions. Religious Jews regard Judaism as their means of observing the Mosaic covenant, which was established between God and the Israelites, their ancestors. Along with Samaritanism, to which it is closely related, Judaism is one of the two oldest Abrahamic 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, a collection of ancient Hebrew scriptures. The Tanakh, known in English as the Hebrew Bible, is also referred to as the "Old Testament" in Christianity. 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-language word torah can mean "teaching", "law", or "instruction", although "Torah" can also be used as a general term that refers to any Jewish text that expands or elaborates on the original Five Books of Moses. Representing the core of the Jewish spiritual and religious tradition, the Torah is a term and a set of teachings that are explicitly self-positioned as encompassing at least seventy, and potentially infinite, facets and interpretations. Judaism's texts, traditions, and values strongly influenced later Abrahamic religions, including Christianity and Islam. Hebraism, like Hellenism, played a seminal role in the formation of Western civilization through its impact as a core background element of Early Christianity. (Full article...)

Selected Article

Georg Cantor

Georg Cantor was a German mathematician. He is best known as the creator of set theory, which has become a foundational theory in mathematics. Cantor established the importance of one-to-one correspondence between sets, defined infinite and well-ordered sets, and proved that the real numbers are "more numerous" than the natural numbers. In fact, Cantor's theorem implies the existence of an "infinity of infinities". He defined the cardinal and ordinal numbers, and their arithmetic. Cantor's work is of great philosophical interest, a fact of which he was well aware. Cantor's theory of transfinite numbers was originally regarded as so counter-intuitive—even shocking—that it encountered resistance from mathematical contemporaries such as Leopold Kronecker and Henri Poincaré and later from Hermann Weyl and L.E.J. Brouwer, while Ludwig Wittgenstein raised philosophical objections. Christian theologians (particularly Neo-Thomists) saw Cantor's work as a challenge to the uniqueness of the absolute infinity in the nature of God, on one occasion equating the theory of transfinite numbers with pantheism. Cantor's recurring bouts of depression from 1884 to the end of his life were once blamed on the hostile attitude of many of his contemporaries, but these bouts can now be seen as probable manifestations of a bipolar disorder. (Read more...)

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Temple Sinai of Oakland

Temple Sinai is a Reform Jewish congregation located at 2808 Summit Street in Oakland, California. Founded in 1875, it is the oldest Jewish congregation in the East Bay. Its early members included Gertrude Stein and Judah Leon Magnes, who studied at Temple Sinai's Sabbath school, and Ray Frank, who taught them. Originally traditional, under the leadership of Rabbi Marcus Friedlander (1893–1915) Temple Sinai reformed its beliefs and practices. By 1914, it had become a Classical Reform congregation. That year the current sanctuary was built, a Beaux-Arts structure designed by G. Albert Lansburgh which is the oldest synagogue in Oakland. The congregation weathered four major financial crises by 1934. It has since been led by just three rabbis, William Stern (1934–1965), Samuel Broude (1966–1989), and Steven Chester (1989–present). In 2006 Temple Sinai embarked on a $15 million capital campaign to construct an entirely new synagogue campus adjacent to its current sanctuary. Groundbreaking took place in October 2007, and by late 2009 the congregation had raised almost $12 million towards the construction. As of 2010, the Temple Sinai had nearly 1,000 member families. The rabbis were Steven Chester, Jacqueline Mates-Muchin, and Andrea Berlin, and the hazzan was Ilene Keys. (Read more...)

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