Sea in culture of barbarian invaders and knowledge of geography took a backward step. In the seventh century, Isidore of Seville produced a "wheel map" in which Asia, Africa and Europe were arranged like segments in an orange, separated by the "Mare Mediterranean", "Nilus" and "Tanais" and surrounded by "Oceanus". It was not until the fifteenth century that Ptolemy's maps were used again and Henry the Navigator of Portugal initiated ocean exploration and maritime research. Encouraged by him, Portuguese navigators explored, mapped and charted the west coast of Africa and the Eastern Atlantic and this knowledge prepared the way for the great voyages
Asia–Europe Meeting in 2010, Bangladesh, Norway, and Switzerland in 2012, as well as Croatia and Kazakhstan in 2014. The main components of the ASEM process rest on the following 3 pillars: In general, the process is considered by the partners involved to be a way of deepening the relations between Asia and Europe at all levels, which is deemed necessary to achieve a more balanced political and economic world order. The process is enhanced by the biennial meetings of Heads of State and Government, alternately in Europe and Asia, and biennial meetings of Foreign Ministers as well as other Ministerial Meetings, and