It failed because either the change did not work well in many business settings, or it was inefficient (due to the inefficiency of the conveyer-belt system). A more accurate reason is that the circuits couldn't handle the traffic during peak hour. The customer's orders were regularly mixed up. The conveyer-belt system was not fast enough or efficient enough to handle it.
Answer:
vaccination
Explanation:
Louis Pasteur had been working to find a vaccine that would cure cholera in chickens. His lab assistant gave an older, weaker strain of the disease to the birds. When these birds did not die Pasteur began to rethink his ideas a came up with our current method of administering vaccinations.
1676 - Nathaniel Bacon and other western Virginia settlers were angry at Virginia Governor Berkley for trying to appease the Doeg Indians after the Doegs attacked the western settlements. The frontiersmen formed an army, with Bacon as its leader, which defeated the Indians and then marched on Jamestown and burned the city. The rebellion ended suddenly when Bacon died of an illness.
Slide guitar is a form of technique linked with blues music. It was during the 20th century that this technique developed among blues musicians in the American South. There are also links of its origin to the diddley-bow from Africa. However, it was also almost the same time when the Hawaiian (steel) guitar—a style that emerged in the late 19th century but executed a similar slide technique—was gaining popularity on the mainland through Hawaiin concert tours. In conclusion, it is likely that both blues music and Hawaiian guitar paved their own way to become influential in the course of their early development.
Answer:
here's your answer
Explanation:
The nineteenth century was a time of radical transformation in the political and legal status of African Americans. Blacks were freed from slavery and began to enjoy greater rights as citizens
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