Did you know the doorbell was invented in 1831

in Did You Know7 months ago

There were actually precursor versions of the doorbell around before that, though. Mechanical doorbells, which used levers, strings, or compressed air to ring a bell, were around earlier in the 1800s. However, the electric doorbell invented in 1831 by Joseph Henry is considered the first version that ran on electricity.

Sort:  

Thank you, friend!
I'm @steem.history, who is steem witness.
Thank you for witnessvoting for me.
image.png
please click it!
image.png
(Go to https://steemit.com/~witnesses and type fbslo at the bottom of the page)

The weight is reduced because of the lack of Voting Power. If you vote for me as a witness, you can get my little vote.

Coin Marketplace

STEEM 0.16
TRX 0.17
JST 0.029
BTC 69812.68
ETH 2512.20
USDT 1.00
SBD 2.56