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The Jagiellons never recovered their hegemony over Central Europe, and the ascendancy of the Ottomans foreshadowed the eventual subjection of the entire region to foreign rule; but the half century that followed the Battle of Mohács marked an era of stability, affluence, and cultural advancement unmatched in national history and widely regarded by Poles as their country's golden age.
A lucrative agricultural export market was the foundation for the kingdom's wealth. A population boom in Western Europe prompted an increased demand for foodstuffs; Poland-Lithuania became Europe's foremost supplier of grain, which was shipped abroad from the Baltic seaport of Gdansk. Aside from swelling Polish coffers, the prosperous grain trade supported other notable aspects of national development. It reinforced the preeminence of the landowning nobility that received its profits, and it helped to preserve a traditionally rural society and economy at a time when Western Europe had begun moving toward urbanization and capitalism.
In retrospect historians frequently have derided the idiosyneratic, delicate governmental mechanism of PolandLithuania as a recipe for anarchy. Although its eventual breakdown contributed greatly to the loss of independence in the eighteenth century, the system worked reasonably well for 200 years while fostering a spirit of civic liberality unmatched in the Europe of its day. The host of legal protections that the nobility enacted for itself prefigured the rights generally accorded the citizens of modern democracies, and the memory of the "golden freedoms" of Poland-Lithuania is an important part of the Poles' present-day sense of their tradition of liberty. On the other hand, the exclusion of the lower nobility from most of those protections caused serious resentment among that largely impoverished class, and the aristocracy passed laws in the early sixteenth century that made the peasants virtual slaves to the flourishing agricultural enterprises.
Such broad-mindedness derived as much from practical necessity as from principle, for Poland-Lithuania governed a populace of remarkable ethnic and religious diversity, embracing Roman Catholics, Eastern Orthodox, Protestants, and numerous nonChristians . In particular, after the mid-sixteenth century the Polish lands supported the world's largest concentration of Jews, whose number was estimated at 150,000 in 1582. Under the Jagiellons, Jews suffered fewer restrictions in Poland-Lithuania than elsewhere in Europe while establishing an economic niche as tradesmen and managers of noble estates. Poland-Lithuania as a European Power
The Teutonic Knights had been reduced to vassalage, and despite the now persistent threats posed by the Turks and an emerging Russian colossus, Poland-Lithuania managed to defend its status as one of the largest and most prominent states of Europe. The wars and diplomacy of the century yielded no dramatic expansion but shielded the country from significant disturbance and permitted significant internal development. An "Eternal Peace" concluded with the Ottoman Turks in 1533 lessened but did not remove the threat of invasion from that quarter. The Government of Poland-Lithuania
In other respects as well, the distinctive features of Jagiellonian Poland ran against the historical trends of early modern Europe. Not the least of those features was its singular governmental structure and practice. In an era that favored the steady accumulation of power within the hands of European monarchs, Poland-Lithuania developed a markedly decentralized system dominated by a landed aristocracy that kept royal authority firmly in check. The Polish nobility, or szlachta, enjoyed the considerable benefits of landownership and control over the labor of the peasantry. The szlachta included 7 to 10 percent of the population, making it a very large noble class by European standards. The nobility manifested an impressive group solidarity in spite of great individual differences in wealth and standing. Over time, the gentry induced a series of royal concessions and guarantees that vested the noble parliament, or Sejm, with decisive control over most aspects of statecraft, including exclusive rights to the making of laws. The Sejm operated on the principle of unanimous consent, regarding each noble as irreducibly sovereign. In a further safeguard of minority rights, Polish usage sanctioned the right of a group of gentry to form a confederation, which in effect constituted an uprising aimed at redress of grievances. The nobility also possessed the crucial right to elect the monarch, although the Jagiellons were in practice a hereditary ruling house in all but the formal sense. The prestige of the Jagiellons and the certainty of their succession supplied an element of cohesion that tempered the disruptive forces built into the state system. Poland-Lithuania in the Reformation Era
In modern eyes, the most saliently liberal aspect of Jagiellon Poland is its exceptional toleration of religious dissent. This tolerance prevailed in Poland even during the religious upheavals, war, and atrocities associated with the Protestant Reformation and its repercussions in many parts of sixteenth-century Europe. The Reformation arrived in Poland between 1523 and 1526. The small Calvinist, Lutheran, and Hussite groups that sprang up were harshly persecuted by the Roman Catholic Church in their early years. Then in 1552 the Sejm suspended civil execution of ecclesiastical sentences for heresy. For the next 130 years, Poland remained solidly Roman Catholic while refusing to repress contending faiths and providing refuge for a wide variety of religious nonconformists.

