| 1977 |
Wally Kaechele takes part in the 1. International Congress of Dance Therapy in Toronto/Canada, where she meets Professor Julianna Lau, who is chairwoman of the congress and holder of the chair for Dance Therapy at the York Universirty Toronto. |
| 1979 |
Wally Kaechele, Prof. Julianna Lau, Prof. Dr. med. Dietrich Langen, among others, found the Dance Therapy team |
| 1980 |
Founding of the German Federal Association of Dance Therapy (Bundesverband für Tanztherapie Deutschland e.V. - BVT -) |
| 1980 |
First part-time further training courses in Dance Alive (remedial educational dance) as well as Dance and Expressive Arts Therapy |
| 1983 |
The Dietrich Langen School is founded in Monheim, as the first educational institution for Dance Therapy in Europe
The Dietrich Langen School is granted the status of a recognized school
Managing Director and Headteacher: Wally Kaechele. |
| 1984 |
The School moves into Marienburg in Monheim, a castle which is more than 110 years old
Marianne Eberhard becomes headteacher. |
| 1984 |
The Association of Dance and Expressive Arts Therapists Germany / Austria is founded (Berufsverbandes der Tanz- und AusdruckstherapeutInnen Deutschland / Österreich e.V. - BdTA -) |
| 1988 |
The School is renamed Langen Institute and is changed into a non-profit making limited company. |
| 2001 |
The Langen Institut is taken over by the Präha Group
Managing Director: Petra Witt
Headteacher: Martina Ostermann
Academic Head: Marianne Eberhard-Kaechele
Courses are in Monheim and Berlin |
| 2003 |
Locations: Monheim and Berlin |
