The Eratosthenes Experiment, organised on the 21st of March 2019 by Ellinogermaniki Agogi’s (EA) Research and Development Department in collaboration with Hellenic Mathematical Society, received a more than ever tremendous response, as 802 schools from 77 countries all over the world participated in this celebration of science and education, calculating the circumference of the Earth by using eLearning educational tools and simple instruments.

https://eratosthenes.ea.gr/

We have participate through this eTwinning project. We were part of a collaboration of 77 countries!!! Super!!