Why did the group ABBA split up?

Question

I was listening to them on youtube and I knew they broke up but what year? and why? if anyone knows thanks :)

Answer 1

          In December 1978 cracks in the group ABBA started to appear when Björn and Agnetha announced their divorce, only two months after Benny and Frida got married. They stated that this would not influence their professional collaboration. ABBA continued recording and even went on world tour. But then, when Benny and Frida also got divorced after just 2 years of marriage in February 1981, ABBA gradually started to disband. The four of them had always stated that they would continue with ABBA as long as it would give them pleasure. Of course their divorces had made the collaboration less joyful, but also professionally they all wanted to do something different. Björn and Benny, after 10 years of ABBA, were keen on trying something new in the field of theatrical music. During the autumn of 1981 they had a meeting with Tim Rice the lyricist of successful musicals like 'Jesus Christ Superstar' and 'Evita'.

On August 20th 1982 the last ever ABBA song  "'The day before you came" was recorded. They never split up officially. Over the ensuing years Björn and Benny would be occupied with their new project, the musical 'Chess'. Frida and Agnetha started working on their solo projects. Just as they had come together they grew apart again, each going their own way.

Answer 2

they broke up in 1981 because they all got divorces and did not make music after that  

Answer 3

http://en.wikipedia.org/wiki/ABBA