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See on Wikipedia : https://el.wikipedia.org/wiki/%CE%9A%CE%BF%CE%BC%CE%BC%CE%BF%CF%85%CE%BD%CE%B9%CF%83%CF%84%CE%B9%CE%BA%CE%AE %CE%9F%CF%81%CE%B3%CE%AC%CE%BD%CF%89%CF%83%CE%B7 %CE%95%CE%BB%CE%BB%CE%AC%CE%B4%CE%B1%CF%82.
Check its history https://el.everybodywiki.com/Kept on Wikipedia:%CE%9A%CE%BF%CE%BC%CE%BC%CE%BF%CF%85%CE%BD%CE%B9%CF%83%CF%84%CE%B9%CE%BA%CE%AE %CE%9F%CF%81%CE%B3%CE%AC%CE%BD%CF%89%CF%83%CE%B7 %CE%95%CE%BB%CE%BB%CE%AC%CE%B4%CE%B1%CF%82?action=history.