Category: Nomenclature - Eras are divided into units called ?

Questions

Which class of racing yacht has the same name as a Wagner opera?

Which class of racing yacht has the same name as a Shakespeare play?

In the 1960s, Alan Reed and Jean Vander Pyle were the voices of which television husband and wife?

Which Latin motor-manufacturing name was originally that of a subsidiary of S.K.F. - the bearing makers - for whom the car's design engineers worked?

The seven-branched candlestick called the Menorah is the official state emblem and appears on the president's flag of which country?