April is:
April 2 - World Autism Awareness Day
April 4 - National Day of Silence (LGBTQ+)
April 5 - National Tartan Day
April 7 - World Health Day
April 22 - Earth Day
April 22-28 - Lesbian Visibility Day/Week
April 23 - Administrative Professionals Day
April 28 - World Day for Safety and Health at Work
Last Friday in April: - Arbor Day