Q. Why does Pesach have 8 days? [Jacob aged 10]
A. Pesach is celebrated for 8 days outside of Israel on the authority of the ancient sages during the period of the Second Temple. At that time it was impossible to inform those who lived at a distance from Jerusalem of the exact date of a forthcoming festival. By celebrating an extra day outside of Israel, everyone was certain that the right day was observed simultaneously by all Jews regardless of where they lived. Although today we have a fixed calendar and know exactly when the festivals are, we continue with to have an additional day as it had become an accepted practice.