- From 1850 – natural food and life reform movement and Monte Verita Italy
- 1909 – Haber Bosch process
- 1924 – Rudolf Steiner – Dynamic biological agriculture
- 1950s – Economic miracle: the Green Revolution driven by chemical pesticides and seed breeding
- 1962 – Silent Spring by Rachel Carson – awareness of devastating effect of pesticides on nature and start of Environmental and Ecological movements
- 1970s – Club of Rome environmental movement and criticism of consumerism – awareness of the finite natural resources
- 1991 – first EU organic regulation
- 2000 – EU organic seal is implemented
- 2002 – 5.6 million ha of organic land in the EU
- 2007 – Second EU Organic Regulation
- 2010 – 9 million ha of organic land and € 19.6 billion turnover in the EU
- 2017 – Founding OPTA e.V.
- 2020 – EU Green Deal & Farm to Fork Strategy with the aim to reach 25% of EU organic farmland by 2030
- 2020 – 14.9 milllion ha of organic land and € 53 billion turnover in the EU
- 2022 – Third EU Organic Regulation