The 18th century, often misleadingly celebrated as the "Age of Reason," was, for the Jewish people, a time of intense and unrelenting danger, defined not by stability but by the violent chaos of war, the persistence of medieval superstitions, and systemic, state-sponsored persecution. The traumas endured during this period shaped Jewish identity and forged the iron conviction that self-determination in Zion is not merely a dream, but a necessity born of blood and fire.
This history is not a collection of dates; it is a gripping narrative of survival against a relentless enemy. When we understand the terror of the 18th century, our resolve to stand for Israel, Zion, and the Jewish people becomes unshakeable.
Part I: The Fires of War and the Stain of Superstition (1703–1720)
In the early 1700s, Jewish communities found themselves trapped in the crossfire of European wars, consistently scapegoated and marked for plunder.
As early as 1703, during the Paliy Uprising, antisemitism fueled Cossack rebels (Haidamaks) and local peasants who captured Belaya Tzerkov and subsequently perpetrated a massacre of the town's Jewish and Polish inhabitants. A year later, the chaos spread: in Hungary, Jewish communities were plundered, subjected to violence, and forced to pay crippling "contributions" after being labeled "Habsburg agents" by anti-Habsburg Kuruc rebels. The Great Northern War brought similar devastation to Poland, leading to the sacking of Lissa (Leszno) in 1706, where the Russian army ordered the plundering of the Jewish quarter, resulting in the torture and murder of many Jews, and the ransacking and burning of their homes and synagogue.
Even natural disaster was weaponized against the Jewish people. When the bubonic plague hit Kalisz in 1708, causing the catastrophic deaths of an estimated 450 Jews, the community was immediately blamed for the disease. The surviving Jews of Leszno were then scapegoated and formally accused of intentionally spreading the plague, leading to their formal expulsion from the city in 1709.
If war and disease were not enough, the ancient, baseless lie—the blood libel—was resurrected with deadly intent. In 1710, the first recorded blood libel in Moldavia occurred in Târgu Neamț, setting a dangerous precedent for antisemitic propaganda in the region. This horrific pattern repeated in 1716 in Posen, where the respected leader, Rabbi Aryeh Löb ben Saul, was arrested, brutally tortured to extract a false confession, and faced charges of ritual murder.
Even the sanctuary of the Holy Land offered no respite. In a devastating blow to the burgeoning Ashkenazi community in Jerusalem, Arab creditors rioted in 1720, attacking the Jewish compound and burning the new synagogue to the ground. The subsequent trauma was total: the Ottoman governor held the entire Ashkenazi community responsible for the debts and banned all Ashkenazi Jews from Jerusalem for nearly 100 years.
Part II: The State-Sponsored Campaign of Erasure (1720s–1748)
The mid-18th century saw governments move beyond random violence to institutionalizing persecution, attempting to systematically dismantle and "weed out" the Jewish population.
The most chilling example of this legal warfare was the introduction of the "Familiants Laws" in the Habsburg Empire, escalating throughout the 1720s (including 1720, 1726, and 1728). Emperor Charles III explicitly designed these laws to severely restrict the natural growth of the Jewish population. The decree mandated that only one male in each Jewish family would be granted a marriage license (a "Familiant"), legally forbidding all other sons from marrying. This systemic persecution trapped thousands in poverty and forced many to flee the empire simply to start a family.
Meanwhile, in German lands, the fragility of Jewish existence was brutally underscored by the fate of the successful "Court Jew," Joseph Süß Oppenheimer. After implementing financial reforms and making powerful enemies, his power evaporated the moment his patron, Duke Charles Alexander, died suddenly in 1737. Oppenheimer was immediately arrested, subjected to a show trial, and, upon refusing to convert, was publicly executed in 1738, his body displayed in an iron cage as a perpetual warning.
The policy of destruction culminated in mass expulsions ordered by powerful monarchs:
1742: Expulsion from Russia: Empress Elizabeth, holding deeply antisemitic views, issued a manifesto ordering the expulsion of all Jews from the entire Russian Empire unless they converted to Russian Orthodoxy. This "no Jews" policy defined Tsarist Russia for decades.
1745: Expulsion from Prague: Empress Maria Theresa, who upheld the Familiants Laws and held a deep personal animosity towards Jews, accused them of disloyalty. She issued a cruel decree demanding that all 10,000+ Jews be expelled from Prague by January 1745, in the dead of winter. Families were forced to abandon their homes and possessions, suffering immense hardship and death.
Part III: The Collapse and the Ultimate Betrayal (1753–1768)
The second half of the century witnessed a terrifying resurgence of violence, including catastrophic
internal crises.
The Blood Libel returned with shocking savagery. In 1753 in Zhitomir, following a false accusation, 11 Jews were publicly skinned alive and killed. The decade-long wave of trials in Poland, which began in 1736, continued, resulting in the torture and execution of numerous community leaders, including three in Posen in 1755.
The trauma was compounded by the devastating Frankist Heresy. Jacob Frank and his followers, excommunicated by the rabbis, allied with the Catholic Church and dangerously renounced the Talmud, claiming it was full of lies. In 1757, this alliance led to the agonizing, public burning of thousands of Talmudic books in cities across Poland.
Two years later, in 1759, the Frankists committed the ultimate betrayal: they testified to Catholic authorities that rabbinic Jews used Christian blood for rituals, thus weaponizing the blood libel against their own people. This was immediately followed by the mass baptism and conversion of thousands of Frankists to Catholicism.
In a catastrophic political blow, the Polish Sejm (parliament) dissolved the Va'ad Arba Aratzot (The Council of Four Lands) in 1764, effectively "decapitating" the Jewish community and removing its unified political leadership just before Poland was carved up by empires.
The century’s darkness culminated in the Massacre of Uman (1768), one of the most horrific massacres of the century during the Haidamak Uprising. Rebels slaughtered thousands of Jews and Poles across dozens of towns. At Uman, the Jewish community gathered in their synagogues for a final defense, only for the Haidamaks to "destroy the synagogues by cannon fire" and slaughter those inside. Estimates of the dead range as high as 20,000.
Part IV: The Iron Cage of Modernity (1787–1798)
As the century drew to a close, persecution shifted from medieval barbarism to modern imperial control.
The Austrian Emperor Joseph II introduced "Enlightened" reforms that sought to eliminate Jewish distinctiveness through forced assimilation. In a humiliating act of state control, the 1787 Name Edict forced all Jews in the Austrian Empire to adopt German-sounding last names chosen from a prepared list.
The map of Jewish life was fundamentally and tragically redrawn in 1791. Following the Partition of Poland, Tsarist Russia suddenly possessed the world’s largest Jewish population—a population it did not want. Empress Catherine II issued a decree that confined the Jewish people to the "Pale of Settlement," a designated "ghetto of empires" consisting of the newly annexed Polish territories. This single act "trapped the majority of European Jewry" under the increasingly antisemitic Russian Empire, setting the stage for centuries of poverty and pogroms.
The century’s final years echoed with violence:
In 1792, in Ofran, Morocco, 50 Jews chose to be burned alive rather than convert to Islam.
In 1794-1795, during the Russian advance on Warsaw, Russian soldiers and rioters massacred thousands in the suburb of Praga, including the Jewish inhabitants.
In 1798, as anti-French forces pushed back against revolutionary armies in Italy, they targeted Jews as "French allies," sparking vicious anti-Jewish riots and attacks across cities like Ancona, Rome, and Siena.