April 15

{{#if:15||-

[[{{#ifeq:15|1|{{#switch:{{#ifeq:4|1|12|{{#expr:4-1}}}}

1=January

2=February

3=March

4=April

5=May

6=June

7=July

8=August

9=September

10=October

11=November

12=December

1|12|{{#expr:4-1}}}} }} {{#switch:{{#ifeq:4|1|12|{{#expr:4-1}}}}

1=31

2=29

3=31

4=30

5=31

6=30

7=31

8=31

9=30

10=31

11=30

12=31

1|12|{{#expr:4-1}}}} }}

{{#switch:4

1=January

2=February

3=March

4=April

5=May

6=June

7=July

8=August

9=September

10=October

11=November

12=December

4 }} {{#expr:15-1}}}}|yesterday]]

[[{{#ifeq:15|{{#switch:4

1=31

2=29

3=31

4=30

5=31

6=30

7=31

8=31

9=30

10=31

11=30

12=31

4 }}

12|1|{{#expr:4+1}}}}

1=January

2=February

3=March

4=April

5=May

6=June

7=July

8=August

9=September

10=October

11=November

12=December

12|1|{{#expr:4+1}}}} }} 1|{{#switch:4

1=January

2=February

3=March

4=April

5=May

6=June

7=July

8=August

9=September

10=October

11=November

12=December

4 }} {{#expr:15+1}}}}|tomorrow]]

}

|- |[[{{#switch:{{#if:4| {{#switch:{{#expr: 4 + -1}} |0=12 |13=1 |{{#expr: 4 + -1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + -1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + -1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + -1}}}}|}} |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |{{#if:4| {{#switch:{{#expr: 4 + -1}} |0=12 |13=1 |{{#expr: 4 + -1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + -1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + -1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + -1}}}}|}} }}|«]] | colspan="5" align="center"| [[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }}]] |[[{{#switch:{{#if:4| {{#switch:{{#expr: 4 + 1}} |0=12 |13=1 |{{#expr: 4 + 1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + 1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + 1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + 1}}}}|}} |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |{{#if:4| {{#switch:{{#expr: 4 + 1}} |0=12 |13=1 |{{#expr: 4 + 1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + 1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + 1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + 1}}}}|}} }}|»]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 1|1]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 2|2]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 3|3]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 4|4]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 5|5]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 6|6]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 7|7]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 8|8]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 9|9]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 10|10]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 11|11]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 12|12]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 13|13]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 14|14]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 15|15]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 16|16]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 17|17]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 18|18]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 19|19]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 20|20]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 21|21]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 22|22]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 23|23]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 24|24]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 25|25]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 26|26]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 27|27]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 28|28]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 29|29]] |{{#ifeq:4|2||[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 30|30]]}} |{{#ifeq:{{#if:| {{#switch:{{#expr: {{{monthoffset}}} + 0}} |0=12 |13=1 |{{#expr: {{{monthoffset}}} + 0}} }} |}}{{#if:4| {{#switch:4 |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + 0) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + 0) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + 0}}}}|}}|31|[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 31|31]]|}} | colspan="4"| |}

{{#if:||}}

• 1912 — The Titanic sinks; there are over 1,500 casualties.
• 1955 — Olivier Destrez (first European French voice of Spike Witwicky and Cliffjumper in the original cartoon, but also the voice of Cyclonus, Demolishor, Vector Prime and many others in the Unicron Trilogy) is born.
• 1955 — Ray Kroc opens his very first McDonald's restaurant in Des Plaines, Illinois.
• 1965 — Composer Koichi Namiki is born.
• 1971 — Actor Andrew Daly (Donnie in Transformers: Dark of the Moon) is born.
• 1978 — Takashi Watanabe (Japanese voice of Guard) is born.
• 1993 — André Raimundo (Portuguese voice of Dave the Security Guard, 24K-Bit and Thrash Malto) is born.
• 1996 — Keita Tada (voice of Optimus Prime) is born.
• 1998 — The Beast Wars II episode "Bighorn's Rage" premieres in Japan.
• 2005 — Transformers: Robots in Disguise—Part 2 of 2 is released on DVD in the UK by Maximum Entertainment.
• 2005 — "Deep Sea Discovery! Vector Prime" is serialized by Comic BomBom in their May 2005 issue.
• 2006 — The Cybertron episode "Balance" premieres in the US.
• 2009 — All Hail Megatron #10 and Maximum Dinobots #5 are released by IDW Publishing.
• 2009 — The Henkei! Henkei! Transformers manga chapter "Time of Resurrection" is serialized in Japan in Comic BunBun's May 2009 issue.
• 2015 — The Transformers vol.2 #40 — Combiner Wars part 2 and The Transformers: Spotlight Omnibus Volume 1 TPB are released by IDW Publishing.
• 2016 — The album "Transformers Roll Out" is released by Hasbro Studios and Sony Music Entertainment.
• 2021 — Dario de Castro (Brazilian voice of Prowl, Smokescreen, Predaking, Obsidian, Theodore Galloway, Daytrader and more) dies at age 72.
• 2023 — TakaraTomy releases the first wave of Beast Awakening toys. The associated "Burning Plasma Blaster Present Campaign" begins as well: the Burning Plasma Blaster toy is given away free with the purchase of 5000 yen worth of Beast Awakening toys in stores across Japan.
• 2023 — The EarthSpark episode "Moo-ving In" premieres in Cantonese.
• 2023 — Transformers Go! Go! #23 is published.
• 2023 — Gileno Santoro (Brazilian voice of Yoketron and the small Colossus Rhodes) dies at the age of 74.
• 2024 — Transformers Go! Go! #37 is published.
• 2025 — Hasbro officially reveals the Supreme × Transformers Optimus Prime Collaboration.
• 2025 — Ken Shiroyama (Japanese voice of Fight! Super Robot Lifeform Transformers 2010 cartoon Bombshell, Fireflight, Perceptor, and many more), passes away at age 92.
• 2026 — G.I. Joe #21 is released by Image Comics and Skybound Entertainment.