Depends, if you're talking about the song, the play or the film.
Benny Andersson, Bjorn Ulvaeus and Stig Anderson wrote the song Mamma Mia in early 1975. It was the first track on ABBA's third album, entitled ABBA, released April 1, 1975. According to biographer Carl Magnus Palm, it was the last song to be written and produced for the album.
In 1997 producer Judy Cramer commissioned Catherine Johnson to write the book for the musical play that became Mamma Mia!, which opened on April 6, 1999. She also wrote the screenplay for the film, presumably in or about 2007. The film opened in the summer of 2008.
"Mamma Mia!" was written in 1999 by British playwright Catherine Johnson, featuring the music of Swedish pop group ABBA.
Catherine Johnson wrote the script for Mamma Mia! she is an amazing person she is my idol xx :D :P
Some time in 1996 if this helps
Catherine Johnson.
Sophia's father in Mamma Mia! is never revealed. Mamma Mia! was written by Catherine Johnson.
It was written in the key of D.
Mamma Mia is set in Greece.
Hege Newth has written: 'Mamma! Mia!'
Greece in the year 1999
"Mamma Mia" the song was made in 1975.
as far as we know there might be mamma mia 2!
Mamma Mia! The Movie was filmed in Skopelos, Greece.
Catherine Johnson, writer of the Mamma Mia musical on Broadway, also wrote the Mamma Mia movie script.
Mamma Mia! is a stage musical written by British playwright Catherine Johnson , based on the songs of ABBA, composed by Benny Andersson and Björn Ulvaeus, former members of the band.
All of the songs in "Mamma Mia" were created by ABBA. It was ABBA's greatest hits that created the inspiration for the "Mamma Mia" story.
Phyllida Lloyd directed Mamma Mia the Movie.