Odisha Day is held on April 2. Odisha, India. This event in the first decade of the month april is annual.
Holocaust commemoration day on April 8 (יום השואה - Yom HaShoah - the twenty-seventh of Nissan);
Israel memmorial day on April 13 (Yom Hazikaron; יוֹם הַזִּכָּרוֹן - on the forth of Lyar);
Hillsborough Disaster Memorial on April 15 (Liverpool, England)