240 years ago, German philospher Adam Weishaupt founded this secretive organization in Bavaria as an alternative to freemasonry. Little did he know, the Illuminati would one day blossom into a flourishing meme on the Internet.

It's that time of the year again…

Five years ago on this day, Labour party politician accidentally tweeted his own name while trying to search for an article about him, which is now annually celebrated by Britons on Twitter with the hashtag #EdBallsDay.

In celebrating this year's World Penguin Day, which coincides with the annual northward migration of penguins, browse and share your favorite images and videos of the wobbly flightless birds!

It's Earth Day! Why not do something meaningful? Find what's happening in your area.