It takes approximately 48 to 72 hours for your level of hCG to double its levels. What this means for you depends on your body. If your level of hCG prior to pregnancy is 2 miU, it might take two to three days for it to double to 4 mIU and another two to three days for that to double to 8 mIU. This means it could take a week for the most sensitive pregnancy test to determine whether or not you a pregnant.
Navigation at Sea, History of. The first Western civilization known to have developed the art of navigation at sea were the Phoenicians, about 4,000 years ago (c. 2000 B.C.E. ). Phoenician sailors accomplished navigation by using primitive charts and observations of the Sun and stars to determine directions.
Report Abuse. The Phoenicians are the same people as the Canaanites. Canaanite is the Semitic word used for them, coming from the word 'Kan', or 'K'naan'. Phoencian is the Greek word for these same people. Tin trading-Phoenicians were well-known for trading tin, travelling as far as Britain to trade in tin. The colour pruple-The Phoenicians were famous for producing expensive purple dye (the colour of royalty) through murex seashells, which contained the purple used to make the purple dye. The Greeks called them Phoenicians because of the purple dye which they were famous for producing. The invention of the galley-The Phoencians invented the galley, used for sailing the Mediterranean Sea, and in times of war as a naval vessel. Phoenician kingdoms such as Arvad and Tyre were famous for their shipbuilding.