Date: 26 September 2011
Location: Nationwide tribute
Status: Foundational. This is where the movement starts.

On 26 September 2011, one day after Professor Wangari Maathai’s death, Dr. Isaac Kalua Green called on Kenya and the world to honour each year of her life by planting and growing 71 trees. This was the first time the plant your age idea was carried by an organisation rather than one person acting alone, and it became the founding act of what is now Plant Your Age.