Incandescent Light Bulb Was Patented by Thomas Edison in 1880

 Events
Jan 272024
 

Light BulbIncandescent light bulb was patented by Thomas Edison in 1880. The patent number is 223898. Idea: In a drawing a light bulb above someone’s head indicates the person has developed a new idea. Children could draw light bulbs. They could surround the light bulbs with ideas of their own for new inventions. They could see his patent at: Light Bulb Patent.

Cologne Cathedral Completed Construction in 1880

 Events
Aug 142024
 

Cologne Cathedral, in Cologne, Germany, completed construction in 1880. Building had started in 1248. However, work was suspended in 1473. Centuries later, construction started again. A World Heritage Site, the cathedral hosts about 20,000 visitors per day. Children could learn more about the Cologne Cathedral at the World Heritage site: http://whc.unesco.org/en/list/292.