ऐतिहासिक रूप से, मनुष्य मुख्य रूप से अपनी पीढ़ियों तक ज्ञान को कैसे सुरक्षित रखते हैं?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?