And there is the anguish experienced by billions of people because of sickness, old age, and the death of loved ones. The 20th century saw the worst suffering ever.
पूरे इतिहास में इंसान ने सबसे ज़्यादा दुःख - तकलीफों का अनुभव 20वीं सदी के दौरान किया है ।