Not 150 miles each - 150 in total over the course of about four days.
Take-home message appears to be that bikes get about twice as good every decade from the 1900s through to about the late 1980s, and then about 10% better every decade since then. They're somewhat dodgy and dangerous until the 1950s introduce fairly standard steel frame geometry and back derailleurs. 1980s introduces standard sizes for groupsets which massively improves general rideability. Since then, it's been general improvements in material technology and attention-to-detail rather than anything particularly ground-breaking.
I've a 'seventies bike' for cool, but it is a lot of work, and a couple of 2000's bikes that are actually useful workhorses, so that tracks.
Cool video, comrade. Thanks!