# Haredi Judaism
The strictly traditionalist wing of [[Judaism]], commonly called "ultra-Orthodox" - a label the communities themselves generally reject in favor of *haredi*, "one who trembles" before God. Where [[Modern Orthodox Judaism]] answered emancipation by synthesizing Torah with secular life, Haredi Judaism answered it by refusing the terms: minimizing secular education, maintaining distinctive dress and language, and constructing a self-sufficient institutional world. The refusal has been extraordinarily successful. Haredi Judaism is the fastest-growing segment of world Jewry and is on a demographic trajectory to reshape Israeli politics within a generation.
## Founding and origins
Two 18th-century movements and one 19th-century reaction produced it.
**Hasidism** arose in Podolia and Volhynia from the circle around Israel ben Eliezer, the Baal Shem Tov (c. 1700-1760) - a populist mystical revival emphasizing joy, prayerful intensity, and devotion to a charismatic *rebbe* over elite Talmudic scholarship. It spread explosively through Eastern European Jewry.
**The Mitnagdim** ("opponents"), led by the Vilna Gaon (1720-1797), fought it as dangerous enthusiasm and doubled down on rigorous Talmud study; the yeshiva at Volozhin (1803) became the model for the Lithuanian - **Litvish** or **yeshivish** - world.
The two were bitter enemies for a century. What united them was a third thing: the emancipation and the emergence of [[Reform Judaism]]. Moses Sofer of Pressburg coined the formulation that became the movement's charter - *chadash asur min ha-Torah*, "the new is forbidden by the Torah" - reframing resistance to change as itself a religious obligation. Agudath Israel, founded in 1912, gave the coalition a political vehicle.
The [[Holocaust]] annihilated the European heartland. What exists today was rebuilt almost from nothing, largely in Brooklyn and in Israel, by survivors - which is a substantial part of why the culture treats demographic growth as a religious imperative and assimilation as an existential threat.
## Major divisions
- **Hasidic dynasties**, each following its own rebbe: **Satmar** (the largest, and militantly anti-Zionist on theological grounds), **Ger**, **Belz**, **Bobov**, **Vizhnitz**, and **Chabad-Lubavitch** - the outlier, which combines Hasidic practice with an outward-facing global outreach network unlike anything else in the Haredi world.
- **Litvish/yeshivish** - the non-Hasidic Lithuanian stream, organized around elite yeshivot and the authority of leading *roshei yeshiva*.
- **Sephardic Haredim** - primarily in Israel, mobilized politically by the Shas party from 1984 as a Mizrahi religious and ethnic movement.
## Demographic footprint
The defining fact is fertility. Haredi households average roughly six to seven children, against replacement-level or below for most other Jewish populations. Haredim are about 13-14 percent of Israel's population and rising toward a projected quarter or more by midcentury; about 6 percent of American Jews but a much larger share of American Jewish children. Concentrations: Jerusalem, Bnei Brak, Beit Shemesh, and Modiin Illit in Israel; Brooklyn, Lakewood, Monsey, and Rockland County in the United States; Stamford Hill in London; Antwerp.
## Right-wing politics tributaries
**Bloc voting.** Haredi communities in New York and New Jersey vote as coordinated blocs on rabbinic guidance, which converts a small population into decisive margins in local and state races. Both parties court them; since roughly 2016 the tilt has been strongly Republican, driven by yeshiva funding, opposition to state oversight of private education, and social conservatism. The New York State education department's substantial-equivalency fight over secular instruction in Hasidic yeshivas has been the sharpest flashpoint, and it produced an alliance with the broader religious-schooling movement documented in the [[Christian Right Timeline]].
**The Israeli conscription crisis.** The exemption from military service granted to yeshiva students at the state's founding covered a few hundred men; it now covers tens of thousands, and it is the most explosive issue in Israeli domestic politics. The High Court ruled the blanket exemption illegal in June 2024 and ordered conscription to begin. In July 2025 the Haredi parties - United Torah Judaism's two factions, then Shas - left [[Benjamin Netanyahu]]'s coalition over a conscription bill, cutting the government to a bare 60 seats. The Knesset voted to dissolve itself in July 2026, setting elections for 27 October 2026, with the conscription dispute the proximate cause. A theocratically privileged minority large enough to break governments but not large enough to govern is a genuinely novel political problem, and it is worth watching as a live case of what demographic growth does to a bargain struck when the beneficiaries were few.
**Anti-Zionist Haredim.** Satmar and the smaller Neturei Karta hold that a Jewish state before the messianic age is illegitimate. Their protests and occasional appearances alongside anti-Israel movements are routinely exploited in bad faith across the political spectrum - by anti-Zionists as proof that "real Jews" oppose Israel, and by the right as evidence of Jewish disloyalty. Neither reading survives contact with what Satmar actually teaches.
**As a target.** Visibly identifiable Haredim absorb a disproportionate share of street-level antisemitic assault in New York and elsewhere - the gap between the [[Antisemitism]] discourse, which is mostly about campuses and elite institutions, and the incident data, which is substantially about Brooklyn, is one of the more revealing mismatches in American religious politics.
## Connections
- [[Judaism]] - the parent tradition.
- [[Modern Orthodox Judaism]] - the other Orthodox wing; the boundary is contested and moving.
- [[Reform Judaism]] and [[Conservative Judaism]] - the liberal denominations Haredi Judaism defines itself against.
- [[Holocaust]] - the rupture that destroyed the European Haredi world and shaped everything since.
- [[Israel]] - the state whose founding bargain with the Haredi parties is now unraveling.
- [[World Religions Timeline]] - the chronological spine.
## See also
[[Judaism]] | [[Reform Judaism]] | [[Conservative Judaism]] | [[Modern Orthodox Judaism]] | [[Israel]] | [[Antisemitism]] | [[Religions Hub]]
- [[Judaism Timeline]] — the tradition's internal chronology; the Hasidic/Mitnagdic split sits in Era VI; [[Hasidism]] now has its own entry