September 7: El Salvador adopted Bitcoin as legal tender (2021)

September 12: UnConference Medellín (Colombia)

September 19: Noderunners Conference 2026 (Netherlands)

September 23–24: Midwest Bitcoin Summit (Ohio, USA)

September 27: Proof Conference 2026 (Lithuania)

September 28: Bitcoin Treasuries Conference NYC (New York, USA)

bitcoin

![](https://m.stacker.news/154515)
![](https://m.stacker.news/154517)

## HISTORICAL DATES:

September 7: El Salvador adopted Bitcoin as legal tender (2021)

## EVENTS IN 2026:

September 12: UnConference Medellín (Colombia)
September 19: Noderunners Conference 2026 (Netherlands)
September 23–24: Midwest Bitcoin Summit (Ohio, USA)
September 25–26: BTCHEL 2026 (Finland)
September 27: Proof Conference 2026 (Lithuania)
September 28: Bitcoin Treasuries Conference NYC (New York, USA)

*Get your own* [*wall calendar*](https://kontext.store/product/bitcoin-wall-calendar-2026/) *or* [*wallpaper calendar*](https://satosh.ee/product/bitcoin-wallpaper-calendar-2026/)