1957: Birth at Berlin, Germany.
1975 - 77: Vocational training as computer programmer.
1979 - 98: Employment as computer programmer at Technical University of Berlin.
1983 - dato: Extensive travels to India. PDF
1983: Involvement in German peace movement; Establishment of Gandhi Information Center, Berlin (chairperson from 1983 to 1992). PIC
1984: First major exhibition on the life and work of Mahatma Gandhi in Berlin. VID VID VID PIC PIC PIC
Co-author of the book My Life Is My Message - Das Leben und Wirken von M.K. Gandhi (German). WWW PDF
1985: Prabhudas Gandhi becomes mentor and friend. WWW
Adviser to ORF (Austrian TV) for a TV program on Gandhi, Mirabehn, the Chipko movement, and ecology in the Himalaya region (Bäume umarmen - Hugging Trees). VID
That's what the Stasi (Secret service of German Democratic Republic) documented about Peter Rühe: PDF
1986: PDF
1987: Leading first group tour In the Footsteps of Mahatma Gandhi to India. VID VID VID VID VID VID PIC
Major exhibition on the life and work of Mahatma Gandhi in Israel. WWW PDF
Adviser to ZDF/3SAT (German TV) for a 3-hours TV programme on Gandhi. VID
1988: Preparation of an extensive photo archive on Gandhi and India's independence movement (until 1994). WWW
Consultant to ZDF (German TV) for a TV quiz on Gandhi. VID
1991: Organised an annual drawing competition Mahatma Gandhi - As I See Him in Rajkot (Gujarat/India). VID VID VID VID VID
Establishment and promotion of the International youth project The Gandhi Bridge of Understanding. WWW PDF
1992: Award for his life work by the Gujarati Writers' Association, Rajkot. PDF PDF
Organised an annual drawing competition Mahatma Gandhi - As I See Him in Rajkot and Amreli (Gujarat/India). VID VID VID VID
1996: Award Photographer of the Year by Dinodia Picture Agency, Mumbai. WWW
1997: Director research for a documentary TV serial on Gandhi directed by Ketan Mehta, Mumbai.
1998: Direction and production of the audio visual show NAMASTÉ - A Journey Across India Following The Footprints Of Mahatma Gandhi in Hindi VID, English VID and German VID language. WWW
Establishment of the not-for-profit company GandhiServe e.K. in Germany. WWW
1998 - dato: Design and administration of the most extensive web site on Mahatma Gandhi, GandhiServe's Mahatma Gandhi Research and Media Service. WWW
1999: Promotion of Search-n-Research in India, a countrywide project for the identification and conservation of original material on and by Mahatma Gandhi.
2001: Initiation and coordination of GandhiServe's Earthquake Relief Campaign in Gujarat. PIC
Author of the photo biography Gandhi, published by Phaidon Press, London/New York. WWW
2002: Establishment of the charitable GandhiServe Foundation in Berlin, Germany. WWW
Launch of the Indian edition of the photo biography. VID
Organization of various events. WWW
2003: Consultant to the theater play SAMMY! - The Word That Broke An Empire. WWW
Organization of various events. WWW
2004: Consultant to the BBC TV documentary The World's Most Photographed - Mahatma Gandhi. VID
Organization of various events. WWW
2005: Consultant to the feature film Gandhi My Father. WWW VID
Organization of various events. WWW
2006: Meeting with Indian Prime Minister, Dr. Manmohan Singh. WWW
Organization of various events. WWW
2007: Consultant to Gandhi the musical. VID
Organization of various events. WWW
2008: Organization of various events. WWW VID VID VID VID
2009: Creation of GandhiTopia, a Gandhian social network. WWW
Organization of various events - 2009 until today. WWW
2010: Assistance with establishment of sister organization GandhiServe India. WWW
2011: Planning, design and production of GandhiMedia, GandhiServe's digital media archive.
2012: Lauch of GandhiMedia. WWW
2013: Establishment as Medical Tourism Specialist and co-developer of healing travel programme. WWW
Launch of Berlindo International (from 2015: Ruehe Healthcare GmbH), a company for im/export of ayurvedic products. WWW
2015: Launch of the GandhiServe Store. WWW
2018: Establishment of GandhiServe TV on Facebook. WWW
Direction of 60-minutes audio visual show MY LIFE IS MY MESSAGE - The life and work of Mahatma Gandhi WWW
2019: Creation and promotion of the Gandhi Event Calendar. WWW
2021: Resignation as chairperson of GandhiServe Foundation.
2022: Resignation from board of GandhiServe Foundation. Termination of GandhiServe e.K.