- May 2: May Day is celebrated for the first time in Greece.
- May 15: Sotirios Sotiropoulos forms a government.
- May 23: Ethnikos Gymnastic Club, an Athenian athletic club, is founded by 12 Panellinios' members who disagree with president Ioannis Fokianos' policy.
- December 1: Charilaos Trikoupis declares bankruptcy for Greece and is credited with the quote "Δυστυχώς επτωχεύσαμεν" ("Unfortunately, we're bankrupt!") that he uttered while attending a parliamentary session.