Short answers, pulled from the story.
The Sunda plate anchors the geological heart of Southeast Asia, yet it stops short of Myanmar and northern Thailand. This tectonic boundary creates a landscape defined by constant motion where heavy seismic activity meets volcanic eruptions.
Homo erectus inhabited the region approximately 1.5 million years ago during the Middle Pleistocene age. Distinct Homo sapiens groups reached the area between 50,000 BC and 70,000 BC.
Thailand remains the only country not colonised by European powers before independence. All other Southeast Asian countries were colonised by the 19th century except for this nation.
Around 270 million people live in Indonesia which represents about 40% of South East Asia. The total population includes more than a fifth living on Java with over 800 native languages spoken across the region.
Satellite imaging revealed that Angkor was the largest pre-industrial urban centre in the world at its peak. This capital of the Khmer Empire hosts majestic monuments such as Angkor Wat and Bayon during the 11th to 13th century CE.