Homo erectus probably only arrived on Indonesia about 1.3 million years ago, even though they were widespread in Asia hundreds of thousands of years earlier
Source:
https://www.newscientist.com/article/2229610-ancient-humans-were-weirdly-slow-to-cross-from-mainland-asia-to-java/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home