Event · Significance tier 2 · provisional assessment
Continental forces fortify Dorchester Heights
Washington’s forces moved heavy guns onto the heights overlooking Boston, making the British position increasingly untenable.
- Category
- armed conflict
- Episode relations
- 1
Episode coverage
Episode 2
substantial · spoken: caption verified
Visual check: sequence context
Why this coverage: The sequence gives the March 4 operation, overnight fortification, artillery position, and its command over Boston.
Caption entry: 01:30:57.018
Reviewed sequence context: ep2-cue-08-boston-evacuation
Why it matters
The operation converted the capture of Ticonderoga and Henry Knox’s artillery transport into a decisive result at Boston.
Why this provisional tier
This tier predates canonical assessment v1. It remains a research hypothesis and must not be used as settled label priority.
Dorchester Heights forced the first major British evacuation of the war without a costly assault.
Counterfactual test: Without the artillery position, the siege could have continued or ended through a far bloodier attack.