Collections 1846 - Elias Howe Jr.'s Sewing Machine Patent Model Sewing Machine Patent Model. Patent No. 4,750, issued September 10, 1846. Elias Howe Jr. of Cambridge, Massachusetts. While working as a ...
In 1877, Thomas Edison invented the phonograph, the first machine that could record sound and play it back. On the first audio recording Edison recited, “Mary had a little lamb. Its fleece was white ...
In the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up desktop calculating ...
Developed by Tappan in conjunction with Raytheon, the RL-1 was the first microwave oven designed for home use. With a retail price of $1,295, only 34 units were manufactured in 1955, the first year of ...
In January 1917, discouraged by President Wilson’s continued opposition to the suffrage amendment, Alice Paul, the leader of the National Woman’s Party (NWP) posted pickets at the White House ...
Blue cloth with a circle of eight stars, two wide red stripes and one wide white stripe. General History The Confederate States of America’s first national flag was known as the “Stars & Bars.” This ...
Not long after Intel introduced its 8080 chip, a small firm in Albuquerque, New Mexico, named MITS (Micro Instrumentation and Telemetry Systems) announced a computer kit called the Altair, which met ...
Before there were apps for tablets and smartphones, before mathematics education software was easily installed on personal computers, before electronic calculators entered professional practice and ...
This commercial bread-slicing machine was designed and manufactured in 1928 by Otto Frederick Rohwedder (1880-1960). It was used to slice loaves of fresh bakery bread at Korn's Bakery, in Rohwedder's ...
Patent model for Benjamin Franklin Palmer, “Artificial Leg,” U.S. Patent 9,200 (Aug. 17, 1852). Benjamin Franklin Palmer obtained several patents for artificial legs. According to a glowing review in ...
“I meekly followed [the nurse] through the long ward, unable to return the gaze of the occupants of the twenty-six beds, … and with a sinking heart watched her raise the head of a poor fellow in the ...
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