Short answers, pulled from the story.
Robert Owen, born on the 14th of May 1771 in Newtown, Wales, was a Welsh textile manufacturer and social reformer recognised as a founder of utopian socialism and the co-operative movement. He improved factory conditions at the New Lanark mill in Scotland, promoted experimental communal communities in the United States and Britain, and championed free education and child labour legislation.
New Harmony was an experimental socialist community Owen established in Indiana in 1825, purchasing a town of 180 buildings along the Wabash River for the purpose. It attracted over a thousand residents in its first year but was dissolved in 1827 after roughly two years. Participant Josiah Warren attributed its failure to the absence of individual sovereignty and personal property, observations that later contributed to the development of American individualist anarchism.
Owen's silent monitor was a four-sided block hung above each worker's station at New Lanark, with each face painted a different colour to indicate the quality and quantity of that person's work. Owen opposed corporal punishment and designed the monitor as a non-violent form of workplace discipline that made performance publicly visible.
Owen raised the demand for an eight-hour working day in 1810 and began putting it into practice at New Lanark. By 1817 he had articulated the goal in the slogan "eight hours labour, eight hours recreation, eight hours rest."
Marx and Engels recognised Owen as a precursor who understood that the working class creates capitalist wealth without automatically sharing in it. They nonetheless labelled his approach utopian, arguing that Owen believed socialism needed only to be demonstrated to win acceptance, whereas they held that overthrowing capitalism required an independent revolutionary working-class party.
Owen died on the 17th of November 1858 in Newtown, Wales, the same market town where he had been born, and was buried there on the 21st of November. He died with little money, supported only by an annual income from a trust his sons had established in 1844.