गुप्त काल को भारत का 'स्वर्ण युग' मुख्य रूप से किस कारण से कहा जाता है?

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?