April 1

• Holidays/special occasions:
  • April Fools' Day

• Holidays/special occasions:
  • World Autism Awareness Day
• DVD/Blu-ray releases:
  • Easter Bloody Easter

• Web events:
  • Star Trek: Discovery season 5 premiere, on Paramount+

• Movie openings:
  • The First Omen
  • Monkey Man

• Holidays/special occasions:
  • International Asexuality Day

• Holidays/special occasions:
  • Kambutsu-e (Buddha's birthday) (Buddhist) / Hana Matsuri (flower festival; Japan)
  • Total Solar Eclipse

• DVD/Blu-ray releases:
  • It's a Wonderful Knife
  • Lisa Frankenstein
  • Night Swim

• Holidays/special occasions:
  • Eid al-Fitr (Ramadan ends) (Islamic; 1st Shawwal, 1445 A.H.)

• Historic events:
  • RMS Titanic hits iceberg (sinks on April 15), 1912

• Holidays/special occasions:
  • Income Tax Day (USA)
  • Patriot's Day (USA; Monday)

• DVD/Blu-ray releases:
  • Star Trek: Lower Decks - season 4

• Web events:
  • The Grimm Variations series premiere, on Netflix

• Movie openings:
  • Abigail
  • The Ministry of Ungentlemanly Warfare
• Web events:
  The Spiderwick Chronicles season 1, on The Roku Channel

• Holidays/special occasions:
  • Record Store Day

• Holidays/special occasions:
  • Earth Day

• Holidays/special occasions:
  • Passover (Jewish; Nissan 15-22, A.M. 5784)

• Holidays/special occasions:
  • St. George's Day
  • William Shakespeare's birthday, 1564 (unofficial)
• DVD/Blu-ray releases:
  • Justice League: Crisis on Infinite Earths part two

• Holidays/special occasions:
  • Administrative Professionals Day (Wednesday)

• Holidays/special occasions:
  • Take Our Daughters and Sons to Work (Thursday)

• Holidays/special occasions:
  • National Arbor Day (USA; Friday)

• Holidays/special occasions:
  • Showa Day (Japan)

• Holidays/special occasions:
  • Golden Week (Japan)

• DVD/Blu-ray releases:
  • Madame Web
  • Mean Girls

All years are Common Era unless otherwise indicated (years given for other calendars- e.g., Jewish, Islamic, Chinese- will be the current year for no particular reason, unlike CE years, which generally refer to historic dates). Most calendar links are to external websites, though a very few will be to other sections of this site. For DVD/Blu-ray releases, I try to find a link for the specific movie or show on the distributor's website; failing that, I'll link to a retailer like Target.com or Amazon.com.