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
Quad City International Airport estimated 10,000 people came to welcome Charles Lindbergh in Moline and his famous plane, the Spirit of St. Louis on the Gugenheim tour, a cross-country commercial aviation promotion tour. In 1929 Phoebe Omlie set an altitude record above the airport in a Velie Monocoupe, the only plane ever manufactured in Moline, which still hangs in the passenger terminal. In 1947 the Metropolitan Airport Authority of Rock Island County was formed after seven townships voted to establish it. In 1957 the first count of enplaning and deplaning passengers was made with a total of 59,701 recorded. The airport underwent major remodeling