Estimated to be between 700,000 and 1,000,000 years old, at the time of their discovery the fossils of Java Man were the oldest hominin fossils ever found.
The fossils of Java Man have been housed at the Naturalis in the Netherlands since 1900.
To distinguish Java Man from other Homo erectus populations, some scientists began to regard it as a subspecies, Homo erectus erectus, in the 1970s.
Other fossils found in the first half of the twentieth century in Java at Sangiran and Mojokerto, all older than those found by Dubois, are also considered part of the species Homo erectus.
An interval in Joda-Time represents an interval of time from one millisecond instant to another instant.
Both instants are fully specified instants in the datetime continuum, complete with time zone.
Intervals are implemented as half-open, which is to say that the start instant is inclusive but the end instant is exclusive.
Though Darwin's claims have since been vindicated by the fossil record, they were proposed without any fossil evidence.
Having quickly found abundant fossils of large mammals, Dubois was relieved of his military duties (March 1889), and the colonial government assigned two engineers and fifty convicts to help him with his excavations.
His team soon excavated a molar (Trinil 1) and a skullcap (Trinil 2).
Other scientific authorities disagreed with him, like Charles Lyell, a geologist, and Alfred Russel Wallace, who had thought of the theory of evolution around the same time as Darwin.
Because both Lyell and Wallace believed that humans were more closely related to gibbons and orangutans, they identified Southeast Asia as the cradle of humanity because this is where these apes lived.