Where did the black death come from and when?

Question: Where did the black death come from and when!?
Best Answer - Chosen by Asker:

Unfortunately the plague started much earlier than the previous
writer has indicated!. It started in Asia and was brought by fleas on
animals such as rats which were on trading ships to Europe!. The
first wave started in Europe in late 1347!. It spread throughout Europe and the British Island and Scandinavia rapidly!. For years after the
plague would come in waves throughout europe and then die out with
no reason why!. It is believed that from one third to one half of the WORLD'S population died from the plague!.Www@QuestionHome@Com

I've heard before that an isolated area of the himalayas had it and the mongols invaded and spread it accross asia to europeWww@QuestionHome@Com

1800's in Europe, rodents carried fleas with the plague!. once coming into contact with a human host, the plague could be spread from person to person contact such as breathing coughing sneezing etc Www@QuestionHome@Com