What happened
On 9 November 1989, East Berlin transit restrictions collapsed. Harald Jäger opened the Bornholmer Straße crossing. Crowds breached the Wall. People called Mauerspechte began chipping it apart that evening. Sections fell. Official dismantling by East German Border Troops began on 13 June 1990.
How we know it
The date, method and sequence come from a single source that names Harald Jäger, Bornholmer Straße, 22:45 or 23:30 on 9 November 1989, Mauerspechte, Bernauer Straße, and the 13 June 1990 start of official dismantling. No other sources are cited or implied.
Why it went that way
East Berlin transit restrictions were overwhelmed and discarded. No motive, policy shift, or internal document is cited. The source attributes the opening to Jäger’s yield — not orders, not protest pressure, not prior announcement — and gives no reason for his decision.
What is still contested
The source gives two times for Jäger’s decision (22:45 or 23:30) but does not resolve the discrepancy. It calls the Wall’s fall a catalyst for communism’s collapse in Central and Eastern Europe but does not name which regimes fell, when, or how this causality was established.
What it changed
It started the fall of the inner German border. It helped trigger the Malta Summit’s Cold War declaration in early December 1989. It preceded German reunification on 3 October 1990. It was one event in a series that started communism’s fall across Central and Eastern Europe.
Is it worth your time
Yes. It is the only verified event in the material that directly triggered both the fall of the inner German border and the Malta Summit’s Cold War declaration — two outcomes with clear documentary anchors.