Theodosius was the last emperor to rule over both the eastern and the western halves of the Roman Empire…. Theodosius I
Groove: Meaning “spiral cut in a phonograph record” is from 1902 …
Lessepsian migration : Lessepsian migration (also called Erythrean invasion) is the ongoing migration of marine species across the Suez Canal, usually from the Red Sea to the Mediterranean Sea, more rarely in the opposite direction. It is named after Ferdinand de Lesseps, the French engineer in charge of the canal’s construction.,,,
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