We use them all the time so it's hard to think of life before emojis.
There are hundreds of them and pretty much one for every occasion.
But Class P4A at Murrayburn Primary school want to know what the first ever emoji was.
Was it the thumbs up, red heart or laughing face?
Jeremy Burge is the founder of Emojipedia, which is an online encyclopaedia of emojis - and he's got the answer!