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Check each strand for broken or missing bulbs. Plug in each strand to make sure it works. ️ Gather enough Christmas lights. A good rule of thumb: Use 100 lights per foot of the tree.

1. Prior to the 1880s, Christmas trees were lit by candles. Pretty? Yes. Fire hazard? Absolutely! 2. Thanks to Thomas Edison and his colleague, all that changed. After Edison patented the light bulb ...

When Edison patented the light bulb in 1880, its exact value was hard ... had introduced Britain to the Teutonic tannenbaum—the Christmas tree—and the idea spread. In the States, President ...