Among London's many problems as it grew at the beginning of the nineteenth century was travel between the two banks of the river Thames, which held important ports that could accept shipping coming up the river from the channel. Bridges would interfere with that important trade, so in the years of the 19th century engineers began to examine the only other option: instead of going over, going under the river.
Sixty six years ago a new television show premiered. Bonanza, the saga of the Cartwrights of the Ponderosa ranch was made for the express purpose of selling color televisions, and it brought color to many lives.