पाई सन्निकटन दिवस (Pi Approximation Day) विश्व स्तर पर निम्नलिखित में से किस तिथि को मनाया जाता है?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?