In the year 1002 or 1003.
He sailed west from Greenland, and then south along the east coast of Canada.
Phenylketonuria is a genetic disorder that was first discovered in 1934 by Dr. Asbjorn Folling of Norway
Francium is a natural chemical element but the total quantity of francium in the earth crust is only approx. 30 g. Francium has ca. 40 isotopes and isomers but only two are natural: 221Fr (in the...
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