off topic
Originally Posted by
Dr. HFH
When did e-tickets start?....
https://en.wikipedia.org/wiki/Electronic_ticket
<snip>
E-tickets in the airline industry were devised in about 1994,
[1] and have now largely replaced the older multi-layered paper ticketing systems. Since 1 June 2008, it has been mandatory for
IATA members to use e-ticketing. Where paper tickets are still available, some airlines charge a fee for issuing paper tickets
<snip>
Those of us who remember paper carbon copy airline tickets are of a certain age!