किस वर्ष में विश्व की शहरी जनसंख्या उसकी ग्रामीण जनसंख्या से अधिक हो गई?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?