"So it goes" originated from these characters in the book.
What is the Tralfamadorians?
Billy Pilgrim's job in mid-life.
What is an optometrist?

What is firebombing of Dresden? OR What is Dresden, WWII?
Mode of transportation of Tralfamadorians.
What is flying saucer?

Where Billy is from
What is Ilium, New York?
Epitaph on the gravestone
What is "Everything is beautiful and nothing hurt"
Prayer in Billy's office and Montana Wildhack's necklace
What is "The Serenity Prayer"?
Made at the slaughterhouse basement by POWS.
What is vitamin supplement syrup?
The woman the Tralfamadorians kidnap who becomes Billy's partner.
Who is Montana Wildhack?
Sound that represents the idea that war is incomprehensible and senseless and life is chaotic and absurd but still beautiful.
What is sound of jabbering birds - "poo-tee-weet"?
Who is Weary?
The way that Billy Pilgrim dies.
What is he is assassinated by Paul Lazzaro, who shoots him with a laser gun during a speech?
When bombing happened
When is February, 1945?
Where is Billy placed AND give a detail about the decor
What is a geodesic dome on Tralfamador and something about furniture from Sears and Roebuck or gold carpet or mint green appliances?
Soldier from Cody, Wyoming
Who is Wild Bob?
Billy Pilgrim's wife Valencia dies in this way.
What is she died from carbon monoxide poisoning related to a car crash?
Date when Billy Pilgrim dies
What is Feb 13, 1976?
Because of the firebombing of Dresden, this is what Kurt Vonnegut consider himself.
What is a humanist? OR What is an anti-war person?
The Tralfamadorians resemble this.
What are toilet plungers?
Something Dresden is famous for other than bombing.
What is porcelain "Dresden Dolls"? / What is architecture?
Edgar Derby's fate.
What is he is killed by firing squad for taking a teapot?
Theories why Billy became unstuck in time other than Tralfamadorians.
What is head injury after plane crash on top of other trauma (PTSD)?
What the soldiers ride on to leave Dresden.
What is a coffin shaped wagon? -
This metaphor is used to explain how everything in time is all happening at once and is predestined.
What is "We are all bugs in amber"?
Other title for Slaughterhouse Five.
What is the "Children's Crusade"?