According to www.vegemite.com.au Vegemite started in 1922
According to www.unilever.co.uk/ourbrands/brand_marmite.html Marmite started in 1902
So Marmite is older than Vegemite - bur Marmite still smells and takes like poo....
Look I'm not the only one either - http://www.marmite.com/hate/