Acording to Wikipedia, the first postcard was sent in 1840, if you are interested you can read more about it here:
↑ This is not the first postcard!
Postcards are great, perfect for souvenirs. I personally love collecting them, sending/receiving, and giving them. When I travel I always bring some as souvenir, but sometimes I just don't find what I am looking for, or I just don't buy enough. Luckily I always take plenty of pictures, so I decided to turn them into postcards. It is a great way to utilise my photos, and I never need to worry about not having enough postcards. I can always make more and print them out.
