Well they began considering it because they didn't want another armed revolt like the Americas did. So they peacefully let them leave. Also they let them leave so they could be allies and be valuable trading partners. Also they knew they had enough to deal with like the threat of the cold war bombing. Plus they didn't want India turning to Soviet communism influence. This a basic summary of why they peacefully seceded India and let them become their own country.
It should be.... the Napoleonic Wars.
McCulloch v<span>. </span>Maryland<span> (1819) is one of the first and most important </span>Supreme Court cases<span> on federal power. In this </span>case<span>, the </span>Supreme Court<span> held that Congress has implied powers derived from those listed in Article I, Section 8. The “Necessary and Proper” Clause gave Congress the power to </span>establish<span> a national bank.</span>