islam because of Muhammad
Not 100% sure but I'm pretty sure siam was one of the only ones to escape colonization. look at effects on neighbouring countries?
b. Northwest
The Northwest Passage was a presumed pathway through which sailors could easily sail through the Americas to reach the Pacific Ocean and India. However, it did not exist and sailors were forced to travel around the southern tip of South America until the construction of the Panama Canal in the early 1900s.
Hope this helps!!