2,500 year celebration of Iran's monarchy

The 2,500 year celebration of the Persian Empire (Persian جشن‌های ۲۵۰۰ سالۀ شاهنشاهی ایران) consisted of an elaborate set of festivities that took place October 12-25, 1971 on the occasion of the 2,500th anniversary of the founding of the Iranian monarchy (Persian Empire) by Cyrus the Great. The intent of the celebration was to demonstrate Iran's long and magnificent history and to showcase its contemporary advancements under Mohammad Reza Pahlavi, the Shah of Iran.