1) August 20, 2019
2) August 22, 2019
3) August 21, 2019
4) August 19, 2019
Explanation:
On August 22, 2019, The world observed ‘International Day Commemorating the Victims of Acts of Violence Based on Religion or Belief’ for the 1st time.International Day for Victims of Acts of Violence based on Religion or Belief on 22 August 2019 It aims to honor the victims and survivors of disgraceful acts who often remain forgotten.