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Combining the dating results of the location and other fossils yielded a firm date range of the teeth being 63,000 to 73,000 years old.
Although claims for modern human settlement in Sumatra prior to 60,000 years ago had been made in the past, the evidence was indirect and considered open to question. Even more interesting is that the proof comes from a site known to have been within a “closed-canopy” rainforest at the time.
The term calendar is taken from calendae, the term for the first day of the month in the Roman calendar, related to the verb calare "to call out", referring to the "calling" of the new moon when it was first seen.A date is the designation of a single, specific day within such a system.A calendar is also a physical record (often paper) of such a system.The first recorded calendars date to the Bronze Age, dependent on the development of writing in the Ancient Near East, the Egyptian and Sumerian calendars.A large number of calendar systems which were based on the Babylonian calendar, and which were found in the Ancient Near East, date from the Iron Age.
Evidence of ancient life in hot springs on Earth could point to fossil life on Mars Fossils from 3.5 billion years ago change our ideas about early life on Earth, and how we might look for life on Mars.