A tourist is traveling in Northern Israel with his tour guide Dudu when he comes across an ancient synagogue. The tourist is fascinated with the synagogue, and asks Dudu for details.
"This synagogue is 1503 years old," replies the Dudu.
Impressed at this accurate dating, the tourist inquires as to how he gave this precise figure.
"Easy," replies Dudu, "the archaeologists said the synagogue was 1500 years old, and that was three years ago."