विशाखदत्त द्वारा रचित लुप्त नाटक 'देवीचंद्रगुप्त' को भोज के 'शृंगार-प्रकाश' और किस अन्य लेखक की कृति में पाए गए उद्धरणों की सहायता से आंशिक रूप से पुनर्निर्मित किया गया था?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?