Amok, or running amok, is derived from the Malay word mengamuk, which means making a furious and desperate charge.
It is attributed to Captain Cook who made the first observations and external recordings of amok in the Malay tribes in 1770 during his trip around the world.
Shortly after Captain Cook's report, anthropological and psychiatric researchers observed fools in the primitive tribes located in the Philippines, Laos, Papua New Guinea and Puerto Rico.
The correct answer is: Philippines.