" It was easier to know it than to explain why I knew it. If you were asked to prove that two and two made four, you might find some difficulty, and yet you are quite sure of the fact. "
Arthur Conan Doyle

Back in the day


Great Smog Blankets London

Early in December 1952, a cold fog caused Londoners to burn more coal than usual. When the resulting pollution was trapped by the dense mass of cold air, concentrations of pollutants built up dramatically. By the time it lifted, the smog had caused or advanced the deaths of thousands of people—most of whom were very young or elderly or had pre-existing respiratory problems—leading to a new focus on the dangers of air pollution. Even indoor events were cancelled during the Great Smog. Why?



Bhimbetka Rock Shelters

Possibly inhabited more than 100,000 years ago, the Bhimbetka Rock Shelters are a series of caves in the central Indian state of Madhya Pradesh that exhibit traces of early human life. Bhimbetka was first recorded in 1888 as a Buddhist site, and since archaeologists began visiting it in the 1950s, more than 700 rock shelters have been identified. They are mainly painted in red and white and depict many everyday activities, such as hunting, dancing, and worshipping. What is "Zoo Rock"?

Born on a day like today


Christina Rossetti

Christina Rossetti was one of England's most important female poets of the Victorian era. It is little wonder that she became a poet, given her lineage. Her great-grandfather was a poet, her grandfather was a writer and scholar, and her father was the famous poet and scholar Gabriele Rossetti. Her three siblings followed similar paths. Religious themes dominate her poems, which run the gamut from romantic to devotional to children's poetry. What popular Christmas carol did she pen?

Last updated on Thursday, 5th December 2013

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