Owing to geography and climate, Norwegian communities were often isolated from each other until the early 20th century.

Korolev was kept in the sharashka and isolated from his family until 1944.

It remained isolated until 1920 when the railway station was built (with some funds donated by the local population).

He fell into apathy and became virtually isolated until his death in 2010.

As a result of this depopulation, the island was left under-developed and isolated until the mid-20th century.

It is extremely explosive in its pure form, even at 100 C, and was not isolated until 1975.

They were left isolated on the islands, until the Spanish arrived in the 15th century, allowing no contact and mixing with other ethnic groups.

While vibrant and growing, China remained isolated from the world until only the last few centuries.

Satipo could not be reached by land and remained isolated until 1960.

These tribes were isolated from the world until the twentieth century.