As you can see at the moodle today https://www.google.com/  (the cover photo was taken from moodle) , Greece celebrates the 200 years of start of revolution.

After othomans turkish conquered the Instabul (1453) the Greece belonged to Turkey untin 1821 (about 400 years).

After 400 years , greeks started the revolution and created their new nation Greece with 1st capital the Naflio and the 2nd capital Athens.

Today in Athens despite COVID 19  , they celebrated with the presence of Prince Charles and his ducess Camila, also in greece was also Anastasiades the president of Cyprus, the prime minister of Russia Mr Mishustin and a french deputy .

You can see many images here  https://www.newsit.gr/ellada/karolos-o-prigkipas-pou-eklepse-tin-parastasi-stous-eortasmous-tis-25is-martiou/3248516/