The Ahenenpass (ancestry passport) was introduced in Germany in 1933 and is considered to have been the first precursor to the Holocaust. It was the first legal measure by the Nazi Government to define who was Aryan and who was Jewish. Steadily, only Aryans could work in public service industries — lawyers, teachers, doctors — and you even had to have a Ahnenpass to attend school or to get married. It had to be carried at all times and shown when it was required to prove Aryan descent. People lost their jobs and could not live freely without the passport.
There are obvious parallels with what is happening now with the so-called ‘vaccine’ passports, purportedly because of an ever-milder coronavirus.