This is survivorship bias. Plenty of old Victorian-era businesses vanished without a trace, and today you’re seeing just the small fraction of things that survi

This is survivorship bias. Plenty of old Victorian-era businesses vanished without a trace, and today you’re seeing just the small fraction of things that survived, not the entire records of the business. Meanwhile, in current businesses some employees keep diaries, some records get out through litigation, others are filed with governments, etc.