If the first inhabitants of the Faroe Islands were Irish monks, then they must have lived as a very small group of settlers. Later, when the Vikings colonised the islands, there was a considerable increase in the population. However, it never exceeded 5,000 until the 18th century. Around 1349, about half the population perished in the Black Death plague.
Only with the rise of the deep-sea fishery (and thus independence from agriculture in the islands' harsh terrain) and with general progress in the health service was rapid population growth possible in the Faroes. Beginning in the 18th century, the population increased tenfold in 200 years.
At the beginning of the 1990s the Faroe Islands entered a deep economic crisis leading to heavy emigration; however, this trend reversed in subsequent years to a net immigration. This has been in the form of a population replacement as young Faroese women leave and are replaced with Asian/Pacific brides.[37]