Answer: The one that finally worked was the incandescent light bulb .
Explanation: Edison had built his first high resistance, incandescent electric light. It worked by passing electricity through a thin platinum filament in the glass vacuum bulb, which delayed the filament from melting.
<span><span>A.</span>Feudalism</span>
In AD 1066, the Norman invasion of Britain overpowered the
Saxon-Dane rulers. They brought with them the feudal system of government or
feudalism. They establish the King of England. From then, England was changed
for ever. Normans spoke a variant of Frankish language or French and were known
to build castles everywhere, which served as the main form of defense. In the feudal
system of government, commoners worked and fought for nobles in exchange for
protection and the use of land.
Answer:
Greco-Persian Wars, also called Persian Wars, (492–449 bce), a series of wars fought by Greek states and Persia over a period of almost half a century. The fighting was most intense during two invasions that Persia launched against mainland Greece between 490 and 479.
Explanation:
Either B or C in my opinion
The Zulus lived in South Africa.
