Argentine Antarctica observatory, where he also worked a post office was installed. Civil (employee of the Argentine company official post and telegraph) Hugo Alberto Acuna accounted hoist for the first time in an official way the flag of Argentina on the Argentine Antarctic sector, on 22 February 1904. Such an observatory became the Orcadas Base the oldest existing today across the Antarctic territory permanent human settlement. The Argentine corvette ARA Uruguay returned to Antarctica in 1905 (sailed from the port of Buenos Aires on 10 December 1904) to relieve staffing of the South Orkney and refer to Deception Island and Wiencke Island
Trinity Church (Antarctica) Trinity Church (Antarctica) Holy Trinity Church () is a small Russian Orthodox church on King George Island near Bellingshausen Station, a Russian research station in Antarctica. It is one of the eight churches on Antarctica. It is the southernmost Eastern Orthodox church in the world (cf. St. Ivan Rilski Chapel). The ambitious project to establish a permanent church or monastery on Antarctica first materialized during the 1990s. A charity named "Temple for Antarctica" (Храм – Антарктиде) was approved by Patriarch Alexius II and received donations from across Russia. They organized a competition for the project that was won by architects