Today In History: What Happened On April 11

★World Parkinson’s Day, ★National Submarine Day, ★National Safe Motherhood Day, ★National Pet Day, ★2016: Airtel Payments Bank launched in India, ★1919: International Labour Organization founded, ★1827: Birth of Social reformer Jyotirao Phule, ★1869: Birth Anniversary of Kasturbai Gandhi, wife of Mahatma Gandhi.