Guest
1 Answer - Sort by: Date | Rating
The first U.S. Letter box (where the public could leave its letters) that was sanctioned by the United States Postal Service was patented on March 9, 1858 by Albert Potts.
0
0
- How Was Bike Invented?
- How To Unlock The Babbage Computer?
- Why Did Dr.Martion Cooper Invent The Cell Phone?
- Why Did People Invent The Computer?
- Where Did Vincent Atanasoff Invent The Computer?
- Who Created The Alpha Bit?
- Why Was The Victorian Sewing Machine Invented?
- How Did The Steam Train Changed?
- How Was The Steam Train Developed And Changed?
- When Was The Barbie Doll Created?
- What Is A Trebuchet?
- Who (meaning Culture/country, Or Actual Inventor) Created The First Sundial?
- Who Invented The Car In The Uk?
- When Was The First Car Invented In The Uk?
- When Was The Development Of The Steam Engine?
- What Led Dr.Martin Cooper To Invent The Cellphones?
- Who Invented Hieroglyhics?
- When Was The First Newspaper In Europe Invented?
- How Does Microphone Works?
- Who Invented Syrienge?
- Name The Person Who Invent The Electric Cell?
- Who Was Involved With The X-ray Or Who Invented It?
- What Dose Telegraph Mean?
- Who Invented The Ionoscope And The First All Electrictronic Television System?
- What Else Did Martin Invent?
New Comment - Comments are editable for 5 min.