The large population growth that occurred in the city was a result of continuous migration from other regions of the country.
By 1995 however, continuous migration led it to cross the 2,500,000 mark.
After Indian independence, there was a continuous migration of Baghdadi Jews to Israel.
Conversely, a continuous migration of Bangladeshis from 1971-1995 led their population to cross the 1.6 million mark which was only 10,000 at the time of separation.
There was continuous migration of rural people to the urban centres.
Beginning in the 19th century, there was a continuous migration from Belarus, Ukraine and Northern Russia to settle the distant areas of the Russian Empire.
There was also continuous outward migration of Irish speakers from the Gaeltacht (see related issues at Irish diaspora).
Also, in early days, the Austroasiatic were a hunter-gatherer civilization, a lifestyle which lends itself to continuous migration.
They were concerned about the continuous migration of natives who were assigned locations to the detriment of Boer land claims.
This ongoing process is called continuous migration.