Short answers, pulled from the story.
John Rolfe, a settler from Jamestown, was the first colonist to grow tobacco commercially in North America. He procured his seeds during an earlier voyage to Trinidad and harvested his inaugural crop for the European market in 1612, establishing the Chesapeake tobacco economy that became foundational to the planter class's early wealth.
French naval officer Gabriel de Clieu brought coffee to the Caribbean in 1720 by carrying a single seedling from the Royal Botanical Gardens in Paris to Martinique. Within 50 years of that first planting, Martinique held 18,000 coffee trees, and the cultivation had spread to Saint-Domingue, which by 1788 supplied half the world's coffee.
The triangular trade was a commercial circuit running across three continents: European manufactured goods traveled to West Africa, where they were exchanged for enslaved people, who were then shipped to the Americas. Most enslaved Africans who arrived in the Americas were sold directly to the planter class, who used their labor to produce cash crops shipped back to Europe.
By the 20th century, the planter class had ceased to hold political or social power in either the Americas or Europe. Brazil's abolition of slavery in 1888 was the last such national abolition, ending the labor foundation the class depended on, and the importation of indentured servants from Asia failed to restore its position.
The planter class built in three main styles: French colonial, Georgian, and Palladian. Westover Plantation in Virginia, built in the mid-18th century for William Byrd III, is a premier example of Georgian planter architecture. Thomas Jefferson's Monticello represents the Palladian tradition, a style that also shaped the Rotunda of the University of Virginia.
William Wilberforce led the abolition campaign through the Parliament of Great Britain, winning passage of the 1807 Slave Trade Act, which ended British involvement in the Atlantic slave trade. He continued pressing for full abolition of slavery in the British Empire; the 1833 Slavery Abolition Act received Royal Assent the week after his death, in July 1833.