भाषा अधिगम सिद्धांतों में, जीन पियाजे और लेव वायगोत्स्की मुख्य रूप से किससे संबंधित हैं?

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?