The transition from ape-like shuffling to upright walking (bipedalism) as we do has long fascinated scientists. Why did it happen? When? 

The second question is a little closer to being solved. An analysis of 3.6 million year old hominin footprints in Tanzania suggests our ancestors evolved the hallmark trait of extended leg, human-like bipedalism substantially earlier than previously thought. Many millions of years before humans. Like the chicken and the egg, there is a clear science answer about which came first even if philosophers are baffled.

Once upon a time we all knew what censorship was, who the good and bad guys were, and what could be done to make the world a better place. Look up the noun “censor” in the Oxford English Dictionary and you’ll find an outline of a much-told story under definition 2 (b):

“An official in some countries whose duty it is to inspect all books, journals, dramatic pieces, etc, before publication, to secure that they shall contain nothing immoral, heretical, or offensive to the government.”

Attributing the first instance of this usage to the English poet John Milton, the lexicographers illustrated it with a quotation from his anti-censorship pamphlet, Areopagitica (1644):

Where do the Jewish people come from? This is a question that anthropologists, historians and theologists have studied for millennia.

According to mythology, the Judaeans descended from three patriarchs, Abraham, Isaac, and Jacob, who are buried in the Cave of the Patriarchs (Cave of Machpelah) in Hebron – a city in the Palestine region and a world heritage site located in the southern West Bank, 19 miles south of Jerusalem.