हालिया पुरातात्विक आम सहमति और निष्कर्षों (जैसे अतरंजीखेड़ा और हस्तिनापुर) के अनुसार, भारतीय उपमहाद्वीप में लोहे का व्यापक उपयोग लगभग कब शुरू हुआ था?

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?