The Sentinelese are getting international attention for reportedly killing the American missionary John Allen Chau.

Their tribe is almost entirely isolated from the outside world.

However, they've come into contact with outsiders multiple times since the 1800s and had multiple visits from anthropologists.

The Sentinelese — a small tribe of indigenous people living on India's North Sentinel Island — have drawn international attention for reportedly killing the American missionary John Allen Chau, who seemed to be visiting the island on a religious mission, writing in his journal, "Lord, is this island Satan's last stronghold where none have heard or even had the chance to hear your name?"

It wasn't the first time the tribe has interacted with people from the outside world, or the first time they've killed an interloper.

The Sentinelese, part of the Andamanese (a group of tribes living on the remote Andaman Islands in the Bay of Bengal), have a long history of occasional contact with outsiders. Since the 1800s, there have been a number of recorded contacts with the tribe, and anthropologists have made regular visits since the 1960s.

Not all of them have been friendly. In 1880, a British colonizer kidnapped six of the Sentinelese. And in 2006, tribespeople killed two fishermen harvesting crabs off the island's coast.

Here are 11 known points of contact between the Sentinelese and the outside world — and what happened each time.