Johannes Gutenberg - known for creating the Printing Press, is also well known for creating the first moveable type system from Metal.
Gutenberg Bible - This project is very well known because it was the first time there was a mass production of a single book in Europe, which is one reason we continue to talk about it today.
John and Wendelin of Speier - most likely the first printers to use pure Roman text.
Escala espiritual de San Juan Climaco - The first American-Printed book was issued throughout Mexico.
Notizie Scritte - After the creation of the Printing Press, it became a lot easier to print rather long published works, and/or manuscripts that were not needed as much. During this time the first monthly Newspaper was published in Venice, Italy.
Relation - This was the first weekly printed newspaper
Jose Glover - brought paper, ink, type, and a printing press to the new lands of America in 1638.
Dinah Nuthead - One of the first women printers in America.
Public Occurrence - The first newspaper known to be printed in Boston Massachusetts. It's said to be the first 'Colonial Newspaper'.
Belfast News-Letter - The first English-Language printed newspaper still in business today. Now, it's just printed under the name The Newsletter.
Thomas Jefferson - One of America's founding fathers who wrote and published the Declaration of Independence.
Ben Franklin - Was the 10th son of a soap maker, and looked up to his brother who was an American printer. Which lead him to become a printer himself, as well as active in politics.
Alois Senefelder - is credited with inventing Lithography.
Robert Barclay - Is credited with creating Offset Printing in 1875.
Benny Landa - Known for creating Digital Printing in the 1990's at Indigo Industries
J. Presper Eckert and John Mauchly - credited for creating ENIAC at the University of Pennsylvania.
ENIAC - The world's first computer system.
Chuck Hull - Credited with creating 3D printing in the 80's. Though it was not directly 3D printing, he's still considerably the founder and creator of it in a way.