Question: Who abolished slavery in the country whose colony was the birthplace of Manuel John Johnson?

<P0-S0> As the King's confidence in de Melo increased, the King entrusted him with more control of the state. <P0-S1> By 1755, Sebastião de Melo was made Prime Minister. <P0-S2> Impressed by British economic success that he had witnessed from the Ambassador, he successfully implemented similar economic policies in Portugal. <P0-S3> He abolished slavery in Portugal and in the Portuguese colonies in India; reorganized the army and the navy; restructured the University of Coimbra, and ended discrimination against different Christian sects in Portugal. <SEP> <P1-S0> He was born in Macao, China, the son of John William Roberts of the East India Company and was educated at Mr Styles' Classical Academy in Thames Ditton and at the Addiscombe Military Seminary for service in the East India Company (the HEIC). <SEP> <P2-S0> Macau was administered by the Portuguese Empire and its inheritor states from the mid-16th century until late 1999, when it constituted the last remaining European colony in Asia. <P2-S1> Portuguese traders first settled in Macau in the 1550s. <P2-S2> In 1557, Macau was leased to Portugal from Ming China as a trading port. <P2-S3> The Portuguese Empire administered the city under Chinese authority and sovereignty until 1887, when Macau became a colony through a mutual agreement between the two countries. <P2-S4> Sovereignty over Macau was transferred back to China on 20 December 1999. <P2-S5> The Joint Declaration on the Question of Macau and Macau Basic Law stipulate that Macau operate with a high degree of autonomy until at least 2049, fifty years after the transfer. <SEP> <P3-S0> john thorndike (february 23, 1611 or 1612 – interred 1668) was one of the first founders of the massachusetts bay colony. <P3-S1> other sources show his birth date as born february 1610/11. <SEP> <P4-S0> bermuda's modern black population contains more than one demographic group. <P4-S1> although the number of residents born in africa is very small, it has tripled between 2000 and 2010 (this group also includes non-blacks). <P4-S2> the majority of blacks in bermuda can be termed "bermudian blacks", whose ancestry dates back centuries between the 17th century and the end of slavery in 1834, bermuda's black population was self-sustaining, with its growth resulting largely from natural expansion. <P4-S3> this contrasts to the enslaved blacks of the plantation colonies, who were subjected to conditions so harsh as to drop their birth rate below the death rate, and slaveholders in the united states and the west indies found it necessary to continue importing more enslaved blacks from africa until the end of slavery (the same had been true for the native americans that the africans had replaced on the new world plantations). <P4-S4> the indigenous populations of many west indian islands, and much of the south-east of what is now the united states that had survived the 16th- and 17th-century epidemics of european-introduced diseases then became the victims of large-scale slave raiding, with much of the region completely depopulated. <P4-S5> when the supply of indigenous slaves ran out, the slaveholders looked to africa). <P4-S6> the ancestry of bermuda's black population is distinguished from that of the british west indian black population in two ways: firstly, the higher degree of european and native american admixture; secondly, the source of the african ancestry.