Google on Monday celebrated the 50th anniversary of Logo, the world’s first programming language designed for children, with an interactive doodle.

Users have to help an animated rabbit navigate a maze of blocks. The rabbit jumps from block to block in response to code sequences selected by users. It was developed by the Google Doodle team, members of the Google Blockly team, and researchers from MIT Scratch – a free programming language and online community.

Logo was developed by mathematician Seymour Papert and a team of researchers at the Massachusetts Institute of Technology in 1967. It helped children learn mathematics by asking them to select commands that would then direct an electronic turtle on the screen.