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Since the United States Post Office (now United States Postal Service or USPS) issued its first stamp in 1847, over 4,000 stamps have been issued and over 800 people featured. People have been featured on multiple stamps in one issue, or over time, such as various Presidents of the United States.
To promote letter writing, Dodgson invented "The Wonderland Postage-Stamp Case" in 1889. This was a cloth-backed folder with twelve slots, two marked for inserting the most commonly used penny stamp, and one each for the other current denominations up to one shilling.
10.2 Currency and postage. 11 See also. 12 Notes. 13 References. 14 ... Washington believed the Stamp Act 1765 was an "Act of Oppression" and celebrated its repeal ...
The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.
Birmingham schoolteacher Rowland Hill invented the postage stamp and created the first modern universal postal system in 1839. [88] Alexander Parkes invented the first human-made plastic in the Jewellery Quarter in 1855.
Rowland Hill (1795–1879), UK – postage stamp Maurice Hilleman (1919–2005) – vaccines against childhood diseases Tanaka Hisashige (1799–1881), Japan – Myriad year clock
The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetic, weak and strong interactions – excluding gravity) in the universe and classifying all known elementary particles.
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