Although Vasari wrote about Giotto's life, it is not known how many of the stories are true, because Vasari was writing more than 200 years after Giotto died. Only two things are known for certain. It is known that in 1334 Giotto was chosen by the "commune" (town council) of Florence to design the bell tower next to Florence Cathedral which was being built at that time. It is also known for certain that Giotto painted the "Arena Chapel". But no-one can be certain where he was born, who his teacher was, what he looked like, whether he really painted the famous frescos at Assisi or where he was buried when he died.