1927: Robert Samuel decreed by will the founding of the Hedwig and Robert Samuel Foundation and as financial basis he designated the office and commercial building in Königsallee 14 in Düsseldorf
1931: Death of Robert Samuel
1932: Official approval of the Foundation. Incorporation of the Königsallee 14 office building in Düsseldorf as founding capital. Hedwig Samuel retains the income from the assets during her lifetime
1933 – 1945: National Socialist organisations try in vain to gain access to the allegedly Jewish Foundation assets.
1942: The Königsallee 14 office and commercial building is hit by fire bombs and the roof structure is destroyed
1976: Death of Hedwig Samuel
1976 – 1989: Action as a support Foundation Support of projects at home and abroad
1980 – 1982: Refurbishment of the Königsallee 14 office and commercial building and reconstruction of the roof
1984: Opening of a Foundation office in the building of the Foundation in Düsseldorf
1989: Start of operational activity abroad
1989: Founding of the Asociación Hedwig y Robert Samuel in Costa Rica
1990: Establishment of the Samuel Foundation in Managua, Nicaragua
1989 – 1996: Support of a Dominican street children project in San Salvador, El Salvador
1991: Founding of the Hedwig and Robert Medical Foundation in Nigeria. Construction of a hospital in a rural area
1991: Start of the Foundation work in India
1990 – 1991: Construction of a residential and commercial building with 25 social apartments in Düsseldorf
1991 – 1992: Transport of aid supplies to Romania
1992: Co-founding, with two other non-profit organizations, of the non-profit Kind in Düsseldorf GmbH (KiD) for the protection of children who have suffered violence; establishment of an out-patient child protection centre
1992 – 1993: Completion and opening of the Hospital in Nigeria
1992: Renovation and expansion of the Lomas de Cocorí school in San José, Costa Rica
1992 – 1993: Construction and opening of a training centre in Managua, Nicaragua
1993: Founding of the Samuel Foundation Charitable India Trust; opening of a vocational training centre in New Delhi, India
1994: Enlargement of the hospital in Nigeria with a building wing as well as the connection of a nursing school
1995: Refurbishment of the El Tepeyac hospital in Granada, Nicaragua and the restoration of the water supply in three adjacent municipalities with funding from the German State (BMZ)
1995 – 1996: Opening of two further training centres in New Delhi, India
1996: Establishment of the Foundation in San José, Costa Rica; opening of a vocational training centre in San Jose
1998 – 2007: Support for training facilities in Havana, Cuba
1998 – 1999: Construction of the Foundation’s own training centre in San José, Costa Rica
1999: Expansion of the own training centre in Managua, Nicaragua
2000: Extension of the Bello Amanecer primary school in Managua, Nicaragua with funding from the German State (BMZ)
2002: Opening of a Foundation office in Lampang, Thailand, to support children and young people in their school and vocational training
2005: Official recognition of the Samuel Foundation in Thailand as an international development organisation
2008: Official recognition of the status of the Samuel Foundation as a Misión Internacional (International Aid Organisation) by the State of Nicaragua
2012- 2014: Refurbishment and restructuring of the office space at Königsallee 14 to secure income and optimise earnings
2012: Support for a project of drug prevention of the organisation Misión Hombres de Valor in Satipo, Peru
2015 – 2016: Renovation and extension of the training centre in San José, Costa Rica
2016 – 2017: Renovation and extension of the training centre in Managua, Nicaragua