1967 - Start Up
![timeline-01](https://res.cloudinary.com/grgroup/images/w_290,h_159,c_scale/f_auto,q_auto/v1651257453/timeline-01/timeline-01.png?_i=AA)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
1980 - Stage 01
![timeline-02](https://res.cloudinary.com/grgroup/images/w_290,h_159,c_scale/f_auto,q_auto/v1651257449/timeline-02/timeline-02.png?_i=AA)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
1990 - Stage 02
![timeline-03](https://res.cloudinary.com/grgroup/images/w_290,h_159,c_scale/f_auto,q_auto/v1651257445/timeline-03/timeline-03.png?_i=AA)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
2010 - Stage 03
![timeline-04](https://res.cloudinary.com/grgroup/images/w_290,h_159,c_scale/f_auto,q_auto/v1651257441/timeline-04/timeline-04.png?_i=AA)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
2010 - 2018
![timeline-05](https://res.cloudinary.com/grgroup/images/w_290,h_159,c_scale/f_auto,q_auto/v1651257437/timeline-05/timeline-05.png?_i=AA)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support