Today is World Carfree Day, a time to opt out of the vehicle and brave public transport, cycle or even walk to wherever you have to be. In some cities roads will be closed to powered traffic today, allowing cyclists to take them over. And, even in traffic-choked China, many cities will be cutting down on exhaust fumes by shutting roads down today.
When nine-year-old Betty Parris and her cousin Abigail Williams began having screaming fits, throwing things about the room, making strange noises and contorting themselves, the villagers of Salem, Massachusetts, instantly thought of witchcraft.
In a town notorious for both its bickering and its religious intensity - dancing, Christmas and dolls were all forbidden - panic set in. The mass hysteria resulted in the execution of 20 people, most of them women - the last eight of them on this day in 1692. We are drinking a Black Magic cocktail, and thanking our lucky stars for the century we live in.