The wheel was the earliest of useful inventions. Back dating to 5000 BC. The wheel was used before it was "invented" in the sense that it served many purposes before being given a name.
Glass was used before film was invented.
Brains.
candles
Boats.
Before it was invented, it didn't exist. You can't use something that isn't there for anything.
Before it was invented, it didn't exist. You can't use something that isn't there for anything.
Before the telephone, telegraphs were used.
they used quills
Sugar Lumps
fire
The human eye
Rollers and sleds