High Quality Content by WIKIPEDIA articles! The Heroic Age of Antarctic Exploration defines an era which extended from the end of the 19th century to the early 1920s. During this 25-year period the Antarctic continent became the focus of an international effort which resulted in intensive scientific and geographical exploration, sixteen major expeditions being launched from eight different countries. The common factor in these expeditions was the limited nature of the resources available to them before advances in transport and communication technologies revolutionised the work of exploration. This meant that each expedition became a feat of endurance that tested its personnel to physical and mental limits, and sometimes beyond. The "heroic" label, bestowed later, recognised the adversities which had to be overcome by these pioneers, some of whom did not survive the experience; during this period 17 expedition members died.