Leonardo da Vinci was called a Batman when he made a flying machine with bat-like wings! People thought it was magic! 
Batman #46 is an issue of the series Batman (Volume 1) with a cover date of April, 1948.
Synopsis for "Guileful Greetings" or "The Joker Sends Regards!"
When Joker breaks out of jail the underworld throws a party for his escape complete with giant greeting cards. Drawing inspiration, the Joker commits a series of crimes where he sends Batman cryptic greeting cards giving the caped crusader clues as to what he intends rob. This inevitably works against him, and Batman captures the Joker once more.
Appearing in "Guileful Greetings" or "The Joker Sends Regards!"
Featured Characters:
Supporting Characters:
Antagonists:
- Joker
- Bugs (Single appearance)
- Slim (Single appearance)
- Bull Boyle (Single appearance)
- Aces McGurk (Single appearance)
Other Characters:
- Bats
- Reggie Weems (Single appearance)
- Sue Wonnie (Single appearance)
- Parkins (Single appearance)
Locations:
- Gotham City
- GCPD Headquarters
- Wayne Manor
- Biltdorf Hotel
Items:
Synopsis for "Big House Chaplain!"
Batman infiltrates the Gotham Prison to break down a large network of criminals working from inside.
Appearing in "Big House Chaplain!"
Featured Characters:
Supporting Characters:
Antagonists:
- Duke Kite (Single appearance)
- Whitey Harlan (Single appearance)
- Bull Bergen (Single appearance)
Other Characters:
- Alan Channing (Single appearance)
- Mike Tappan (Single appearance)
- Slips Sanders (Single appearance)
- Warden Williams (Single appearance)
Locations:
Items:
Vehicles:
Synopsis for "The Batman That History Forgot!"
Professor Carter Nichols wants to learn about a man named Batman in the 15th Century and he sends Bruce Wayne and Dick Grayson back in time. The Dynamic Duo meet with Leonardo da Vinci and they help him fight back the oppression caused by a cruel ruler. On this mission, the great inventor uses his flying machine, which resembles a bat and he escapes the dreadful place along with Batman and Robin.
Afterwards, Bruce alters the story and tells Nichols that the man called Batman in the past was da Vinci, for his flying machine.
Appearing in "The Batman That History Forgot!"
Featured Characters:
Supporting Characters:
Antagonists:
- Gian Trivulao (Single appearance)
Other Characters:
- Leonardo da Vinci (First appearance)
- Enrico (Single appearance)
Locations:
Items:
Vehicles:
- Horses
- Leonardo da Vinci's Flying Machine
Notes
- Published bi-monthly by National Comics Publications, Inc.
- In the third story, there are subtle references to the Batman's creation. According to Bob Kane, he based the character's design on Leondardo da Vinci's flying machine and its wings, which resemble those of a bat.
Trivia
- Also appearing in this issue of Batman were:
- "Editorial Advisory Board" (1/3 page promotional text)
- "Want Action ??? Want Mystery ??? Want Humor ???" (2/3 page ad for the current issues of Sensation Comics #76, Detective Comics #134, and Leading Comics #30)
- "THRILL" (full page ad for the current issue of Western Comics #2)
- "Clean Up" (text story) by Kit Martin, logo by Raymond Perry
- "A Top Radio Hit" (full page ad for the current issue of Gang Busters #3)
- Nervous Norman by Phil Berube
- Daffy & Doodle by Lit-Win
See Also