The history of Dutch orthography covers the changes in spelling of Dutch both in the Netherlands itself and in the Dutch-speaking region of Flanders in Belgium. Up until the 18th century there was no standardization of grammar or spelling. The Latin alphabet had been used from the beginning and it was not easy to make a distinction between long and short vowels (a / aa). The word jaar (year) for instance, could be spelt jar, jaer, jair, or even yaer and iaer. With the spirit of the French Revolution, attempts were made to unify Dutch spelling and grammar. Matthijs Siegenbeek, professor at Leiden was officially asked in 1801 to draw up a uniform spelling.