Question: When did the country that contains the birthplace of Reynier de Klerck refuse to surrender Namibia?

<P0-S0> the reynier speer house is located in little falls, passaic county, new jersey, united states. <P0-S1> the house was built in 1785 by reynier speer and was added to the national register of historic places on july 18, 1985. an earlier building from 1680 occupied the location. <SEP> <P1-S0> Boschmanskop No 1+2 Dam, is an earth-fill type dam on the Woes-Alleen River, near Middelburg, Mpumalanga, South Africa. <P1-S1> It was established in 1995. <P1-S2> Its primary purpose is flood control and it is owned by Optimum Colliery Pullen's Hope. <SEP> <P2-S0> in 1758, british forces again captured louisbourg, allowing them to blockade the entrance to the st. lawrence river. <P2-S1> this proved decisive in the war. <P2-S2> in 1759, the british besieged quebec by sea, and an army under general james wolfe defeated the french under general louis-joseph de montcalm at the battle of the plains of abraham in september. <P2-S3> the garrison in quebec surrendered on 18 september, and by the next year new france had been conquered by the british after the attack on montreal, which had refused to acknowledge the fall of canada. <P2-S4> the last french governor-general of new france, pierre françois de rigaud, marquis de vaudreuil-cavagnal, surrendered to british major general jeffery amherst on 8 september 1760. france formally ceded canada to the british in the treaty of paris, signed 10 february 1763. <SEP> <P3-S0> South Africa occupied the colony in 1915 after defeating the German force during World War I and administered it from 1919 onward as a League of Nations mandate territory. <P3-S1> Although the South African government desired to incorporate 'South-West Africa' into its territory, it never officially did so, although it was administered as the de facto 'fifth province', with the white minority having representation in the whites-only Parliament of South Africa, as well as electing their own local administration the SWA Legislative Assembly. <P3-S2> The South African government also appointed the SWA administrator, who had extensive powers. <P3-S3> Following the League's replacement by the United Nations in 1946, South Africa refused to surrender its earlier mandate to be replaced by a United Nations Trusteeship agreement, requiring closer international monitoring of the territory's administration (along with a definite independence schedule). <P3-S4> The Herero Chief's Council submitted a number of petitions to the UN calling for it to grant Namibia independence during the 1950s. <P3-S5> During the 1960s, when European powers granted independence to their colonies and trust territories in Africa, pressure mounted on South Africa to do so in Namibia. <P3-S6> In 1966 the International Court of Justice dismissed a complaint brought by Ethiopia and Liberia against South Africa's continued presence in the territory, but the U.N. General Assembly subsequently revoked South Africa's mandate, while in 1971 the International Court of Justice issued an "advisory opinion" declaring South Africa's continued administration to be illegal. <SEP> <P4-S0> De Klerk's date of birth is not known but he was baptised on 19 November 1710 in Middelburg. <P4-S1> He worked as midshipman aboard the "Kamer van Zeeland", a warship, whose duty was to protect the routes of homeward bound cargo ships. <P4-S2> He made two trips to India as a sailor in the service of the Dutch East India Company. <P4-S3> In December 1730, he left permanently for India aboard the "t Vliegend Hert".