Can you spot 20 of 2013's internet incidents within Brosmind's illustration created for Syzygy?

Syzygy Group's 20 Things That Happened On The Internet is back for its fourth year running. This year's artwork (right) was created by the sibling duo Juan and Alejandro Mingarro, better known as Brosmind in the art world.

Syzygy Group – the "mother ship" for agencies Syzygy, Unique, Hi-Res! And Ars Thanea – challenges you to find all 20 of the internet-based events depicted within the illustration. The answers have now been released, so once you've exhausted your brain power you can find out whether you were right, and get answers to the things you're stuck on, by flicking through our slideshow.

Previous illustrations in the series were created by mc bess, Peter Jaworowski and Niark 1, which you can see at the end of this slideshow.

Use the slideshow controls above and right to take a closer look at each of the the 20 Things and find out the answers. You'll also get a behind-the-scenes look at how Brosmind created the artwork.