Tango Kalender – milongas, classes and festivals

What do the marks mean?

✓ Confirmed: Entered or confirmed by the organizer, the editors or a partner calendar.
Corroborated: Found in at least two independent sources, or on the organizer's own website. Not entered by the organizer – please check before you go.
Corroborated externally: Listed by a partner calendar that checks its entries at the organizer's. Not entered by the organizer – please check before you go.
Hint: Found in a single source; shown collapsed per day. Treat it as a lead, not a fact.