This invitation infographic is brought to you by Staples. From invitations to envelopes, business cards and banners, Staples Copy & Print has all of your printing needs covered.

The U.S. Postal Service processes and delivers 563 million pieces of mail each day. Ideally, wedding invitations should go out six weeks before a wedding. In the "Seinfeld" episode "The Invitations," George's fiancée Susan dies by licking toxic envelopes for their wedding invitations (Don't worry, we don't sell toxic envelopes). Handwritten invitations were only used by the aristocracy in England and France in the 18th century. RSVP comes from the phrase "Respondez s'il vous plait," meaning "please reply." Before the printing press was invented in 1447, weddings were announced by the town crier. The world's largest envelope measured 32-feet long by 23-feet wide.

http://about.usps.com/who-we-are/postal-facts/welcome.htm#H12
http://community.guinnessworldrecords.com/_The-World39s-Largest-Envelope/photo/9265382/7691.html
http://www.emilypost.com/social-life/invitations-and-announcements/153-invitation-etiquette
http://wedding.theknot.com/wedding-planning/wedding-invitations/articles/wedding-invitations-etiquette.aspx

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