Coins minted in the Year 1878

What happended in 1878?
Monarch is Queen Victoria. Prime Minister is Benjamin Disraeli (Conservative). US President is Rutherford B. Hayes (R-Ohio). The phonograph is patented by Thomas Edison. Alexander Graham Bell demonstrates the telephone to Queen Victoria. London introduces Electric street lighting on the Thames Embankment and Waterloo Bridge. In the USA, the Bland–Allison Act leads to the first minting of the Morgan dollar.