By all odds the most remarkable westward migration before the California gold rush of 1849 was the Mormon hegira to the Great Salt Lake basin. |
In the power vacuum left by the retreating Romans, the Germanic Angles, Saxons, and Jutes began the next great migration across the North Sea. |
At the height of glaciation the Bering land bridge potentially permitted migration of mammals, including people, to North America from Siberia. |
Dates for Paleo-Indian migration out of Beringia are a matter of current debate. |
They are vital feeding grounds on migration flyways for shorebirds travelling between the Arctic and Africa. |
The outward migration of people from the city has hurt the city's economy greatly. |