It is suggested that analysis of sedimentary pyrite from the Belingwe sedimentary basin in Zimbabwe may provide evidence for bacterial reduction at this date.
2,500,000,000 to 542,000,000 years ago The Proterozoic Eon: the most recent part of the Precambrian Supereon.
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) 13,800,000,000 (13.8 billion) years ago The creation of the universe according to present estimates of "big bang" - "Stephen Hawkings and others...
estimate between 18 and 11 billion with 13.8 being the closest estimation".
For those who travel alone, the warmth of the natives is as important as the sites.
When planning your next solo trip, you might want to consider one of these cities that were voted the most sociable in the world.