Unrestricted submarine warfare was first introduced in World War I in early 1915, when Germany declared the area around the British Isles a war zone, in which all merchant ships, including those from neutral countries, would be attacked by the German navy.
Answer:
The very idea of the British Raj—the British rule over India—seems inexplicable today. Consider the fact that Indian written history stretches back almost 4,000 years, to the civilizationcenters of the Indus Valley Cultureat Harappa and Mohenjo-Daro. Also, by 1850, India had a population of at least 200 million.
