Though Nowruz is old, the table tradition isn’t: As A. Shapur Shahbazi notes in Encyclopedia Iranica, it only came into effect in the last century. Nowruz has proven resilient in the modern era, too. After Revolution in 1979, the new government attempted to suppress the festival out of fear it might detract from the state religion. But those attempts failed, and Nowruz is now celebrated as an official state holiday. It’s also an official holiday in Afghanistan, Albania, Azerbaijan, Georgia, Iraqi Kurdistan, Kazakhstan, Kosovo, Kyrgyzstan, Mongolia’s Bayan-Ölgii province, Tajikistan, Turkmenistan, and Uzbekistan, and it’s widely celebrated in places like Turkey, Indian and other places with Persian enclaves.