TTED-Ed22.9M subscribers
Watch on YouTube When did we start using passports? - Kristin Surak
Outlier vs channel median1.0×Comparable-age T+720h
Current velocity—needs two snapshots
Engagement3.1%likes + comments
ConfidenceLow4 comparable videos
Where it broke away
Views at the same time after publishing—not lifetime totals.
This video
Why it qualifies
- At 720 hours, views are 1.0× the channel median.
- The baseline uses 4 comparable long-form videos.
Comparison windowComparable-age T+720h
This video at comparable age—
This video now542.1K views
Channel median at comparable age763.3K views
Sample4 videos