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.
Phoenicia was a thalassocratic ancient Semitic civilization that originated in the Eastern Mediterranean and in the west of the Fertile Crescent. It included the coastline of what is now Lebanon, Israel, Gaza, Syria, and south-west Turkey, though some of its colonies later reached the Western Mediterranean and even the Atlantic Ocean. The civilization spread across the Mediterranean between 1500 BC and 300 BC. Phoenicia is an ancient Greek term used to refer to the major export of the region, cl