India & Vietnam seal ‘rare’ 10-yr vision statement among key defence pacts as China threat looms.

Toompea Castle, Tallinn, Estonia - SpottingHistory.com: Toompea Castle is situated on the steep limestone hill in the central part of Tallinn. The first wooden castle is believed to have been built on the hill in either the 10th or 11th century by residents of the ancient Estonian county of Rävala. It was probably one of the first inhabited areas of ...

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"50 million year challenge"

I've drawn two whales. pic.twitter.com/xRG7533Pd5

— SYED حيدر (COMMISSIONS OPEN)‎ (@HJ_arts02) February 18, 2022

'''Carbon-14''' (¹⁴C), or '''radiocarbon''', is a [[radioactive isotope]] of [[carbon]] with an [[atomic nucleus]] containing 6 [[protons]] and 8 [[neutrons]]. Its presence in organic materials is the basis of the [[radiocarbon dating]] method pioneered by [[Willard Libby]] and colleagues (1949) to date arch