Question: When did the country subsidizing indigo crops end slavery?

full_context: Document 1: Charleston, South Carolina: Although the city lost the status of state capital to Columbia in 1786, Charleston became even more prosperous in the plantation-dominated economy of the post-Revolutionary years. The invention of the cotton gin in 1793 revolutionized the processing of this crop, making short-staple cotton profitable. It was more easily grown in the upland areas, and cotton quickly became South Carolina's major export commodity. The Piedmont region was developed into cotton plantations, to which the sea islands and Lowcountry were already devoted. Slaves were also the primary labor force within the city, working as domestics, artisans, market workers, and laborers.
Document 2: Protestantism: Protestantism spread in Europe during the 16th century. Lutheranism spread from Germany into its surrounding areas,[c] Denmark,[d] Norway,[e] Sweden,[f] Finland,[g] Prussia,[h] Latvia,[i], Estonia,[j] and Iceland,[k] as well as other smaller territories. Reformed churches were founded primarily in Germany and its adjacent regions,[l] Hungary,[m] the Netherlands,[n] Scotland,[o] Switzerland,[p] and France[q] by such reformers as John Calvin, Huldrych Zwingli, and John Knox. Arminianism[r] gained supporters in the Netherlands and parts of Germany. In 1534, King Henry VIII put an end to all papal jurisdiction in England[s] after the Pope failed to annul his marriage to Catherine of Aragon; this opened the door to reformational ideas, notably during the following reign of Edward VI, through Thomas Cranmer, Richard Hooker, Matthew Parker and other theologians. There were also reformational efforts throughout continental Europe known as the Radical Reformation—a response to perceived corruption in both the Roman Catholic Church and the expanding Magisterial Reformation led by Luther and various other reformers—which gave rise to Anabaptist, Moravian, and other Pietistic movements. In later centuries, Protestants developed their own culture, which made major contributions in education, the humanities and sciences, the political and social order, the economy and the arts, and other fields.
Document 3: Charleston, South Carolina: Africans were brought to Charles Town on the Middle Passage, first as "servants", then as slaves. Ethnic groups transported here included especially Wolof, Yoruba, Fulani, Igbo, Malinke, and other people of the Windward Coast. An estimated 40% of the total 400,000 Africans transported and sold as slaves into North America are estimated to have landed at Sullivan's Island, just off the port of Charles Town; it is described as a "hellish Ellis Island of sorts .... Today nothing commemorates that ugly fact but a simple bench, established by the author Toni Morrison using private funds."
Document 4: Charleston, South Carolina: By 1840, the Market Hall and Sheds, where fresh meat and produce were brought daily, became a hub of commercial activity. The slave trade also depended on the port of Charleston, where ships could be unloaded and the slaves bought and sold. The legal importation of African slaves had ended in 1808, although smuggling was significant. However, the domestic trade was booming. More than one million slaves were transported from the Upper South to the Deep South in the antebellum years, as cotton plantations were widely developed through what became known as the Black Belt. Many slaves were transported in the coastwise slave trade, with slave ships stopping at ports such as Charleston.
Document 5: Protestantism: Politically, Calvin favoured a mixture of aristocracy and democracy. He appreciated the advantages of democracy: "It is an invaluable gift, if God allows a people to freely elect its own authorities and overlords." Calvin also thought that earthly rulers lose their divine right and must be put down when they rise up against God. To further protect the rights of ordinary people, Calvin suggested separating political powers in a system of checks and balances (separation of powers). Thus he and his followers resisted political absolutism and paved the way for the rise of modern democracy. Besides England, the Netherlands were, under Calvinist leadership, the freest country in Europe in the seventeenth and eighteenth centuries. It granted asylum to philosophers like Baruch Spinoza and Pierre Bayle. Hugo Grotius was able to teach his natural-law theory and a relatively liberal interpretation of the Bible.
Document 6: Charleston, South Carolina: Charles Town was a hub of the deerskin trade, the basis of its early economy. Trade alliances with the Cherokee and Creek nations insured a steady supply of deer hides. Between 1699 and 1715, colonists exported an average of 54,000 deer skins annually to Europe through Charles Town. Between 1739 and 1761, the height of the deerskin trade era, an estimated 500,000 to 1,250,000 deer were slaughtered. During the same period, Charles Town records show an export of 5,239,350 pounds of deer skins. Deer skins were used in the production of men's fashionable and practical buckskin pantaloons, gloves, and book bindings.
Document 7: North Carolina: Most of the English colonists had arrived as indentured servants, hiring themselves out as laborers for a fixed period to pay for their passage. In the early years the line between indentured servants and African slaves or laborers was fluid. Some Africans were allowed to earn their freedom before slavery became a lifelong status. Most of the free colored families formed in North Carolina before the Revolution were descended from unions or marriages between free white women and enslaved or free African or African-American men. Because the mothers were free, their children were born free. Many had migrated or were descendants of migrants from colonial Virginia. As the flow of indentured laborers to the colony decreased with improving economic conditions in Great Britain, planters imported more slaves, and the state's legal delineations between free and slave status tightened, effectively hardening the latter into a racial caste. The economy's growth and prosperity was based on slave labor, devoted first to the production of tobacco.
Document 8: Charleston, South Carolina: Colonial Lowcountry landowners experimented with cash crops ranging from tea to silkworms. African slaves brought knowledge of rice cultivation, which plantation owners cultivated and developed as a successful commodity crop by 1700. With the coerced help of African slaves from the Caribbean, Eliza Lucas, daughter of plantation owner George Lucas, learned how to raise and use indigo in the Lowcountry in 1747. Supported with subsidies from Britain, indigo was a leading export by 1750. Those and naval stores were exported in an extremely profitable shipping industry.
Document 9: British Empire: The Caribbean initially provided England's most important and lucrative colonies, but not before several attempts at colonisation failed. An attempt to establish a colony in Guiana in 1604 lasted only two years, and failed in its main objective to find gold deposits. Colonies in St Lucia (1605) and Grenada (1609) also rapidly folded, but settlements were successfully established in St. Kitts (1624), Barbados (1627) and Nevis (1628). The colonies soon adopted the system of sugar plantations successfully used by the Portuguese in Brazil, which depended on slave labour, and—at first—Dutch ships, to sell the slaves and buy the sugar. To ensure that the increasingly healthy profits of this trade remained in English hands, Parliament decreed in 1651 that only English ships would be able to ply their trade in English colonies. This led to hostilities with the United Dutch Provinces—a series of Anglo-Dutch Wars—which would eventually strengthen England's position in the Americas at the expense of the Dutch. In 1655, England annexed the island of Jamaica from the Spanish, and in 1666 succeeded in colonising the Bahamas.
Document 10: Protestantism: Protestants have founded hospitals, homes for disabled or elderly people, educational institutions, organizations that give aid to developing countries, and other social welfare agencies. In the nineteenth century, throughout the Anglo-American world, numerous dedicated members of all Protestant denominations were active in social reform movements such as the abolition of slavery, prison reforms, and woman suffrage. As an answer to the "social question" of the nineteenth century, Germany under Chancellor Otto von Bismarck introduced insurance programs that led the way to the welfare state (health insurance, accident insurance, disability insurance, old-age pensions). To Bismarck this was "practical Christianity". These programs, too, were copied by many other nations, particularly in the Western world.
Document 11: North Carolina: After 1800, cotton and tobacco became important export crops. The eastern half of the state, especially the Tidewater region, developed a slave society based on a plantation system and slave labor. Many free people of color migrated to the frontier along with their European-American neighbors, where the social system was looser. By 1810, nearly 3 percent of the free population consisted of free people of color, who numbered slightly more than 10,000. The western areas were dominated by white families, especially Scots-Irish, who operated small subsistence farms. In the early national period, the state became a center of Jeffersonian and Jacksonian democracy, with a strong Whig presence, especially in the West. After Nat Turner's slave uprising in 1831, North Carolina and other southern states reduced the rights of free blacks. In 1835 the legislature withdrew their right to vote.
Document 12: Protestantism: Also, other human rights were advocated for by some Protestants. For example, torture was abolished in Prussia in 1740, slavery in Britain in 1834 and in the United States in 1865 (William Wilberforce, Harriet Beecher Stowe, Abraham Lincoln - against Southern Protestants). Hugo Grotius and Samuel Pufendorf were among the first thinkers who made significant contributions to international law. The Geneva Convention, an important part of humanitarian international law, was largely the work of Henry Dunant, a reformed pietist. He also founded the Red Cross.
Document 13: History of human rights: While belief in the sanctity of human life has ancient precedents in many religions of the world, the idea of modern human rights began during the era of renaissance humanism in the early modern period. The European wars of religion and the civil wars of seventeenth - century England gave rise to the philosophy of liberalism and belief in human rights became a central concern of European intellectual culture during the eighteenth - century Age of Enlightenment. These ideas of human rights lay at the core of the American and French Revolutions which occurred toward the end of that century. Democratic evolution through the nineteenth century paved the way for the advent of universal suffrage in the twentieth century. Two world wars led to the creation of the Universal Declaration of Human Rights.
Document 14: Protestantism: Democracy, social-contract theory, separation of powers, religious freedom, separation of church and state – these achievements of the Reformation and early Protestantism were elaborated on and popularized by Enlightenment thinkers. Some of the philosophers of the English, Scottish, German, and Swiss Enlightenment - Thomas Hobbes, John Locke, John Toland, David Hume, Gottfried Wilhelm Leibniz, Christian Wolff, Immanuel Kant, and Jean-Jacques Rousseau - had Protestant backgrounds. For example, John Locke, whose political thought was based on "a set of Protestant Christian assumptions", derived the equality of all humans, including the equality of the genders ("Adam and Eve"), from Genesis 1, 26-28. As all persons were created equally free, all governments needed "the consent of the governed." These Lockean ideas were fundamental to the United States Declaration of Independence, which also deduced human rights from the biblical belief in creation: "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty, and the pursuit of Happiness."
Document 15: Slavery in international law: The concept has its roots in the 1807 Abolition of Slavery Act of Great Britain. Many academics in the field perceive this as the beginning of the end of the traditional form of slavery: chattel slavery. In the 19th century, Britain controlled the majority of the world through its colonies. Consequently, in passing this law to abolish slavery, the British Parliament abolished slavery in the vast majority of its colonies.
ground_truth: 1834
sub_queries: Which nation subsidized indigo crops from the Lowcountry? Answer: Britain
When did Britain end slavery? Answer: 1834