1895 - The Memorial Cenotaph at Adawso shows that by 1895, most Mampong farmers had crossed Adawso and settled in places beyond such as Mangoase, Pakro, Dedewa and surrounding lands.
1900 (assumed) - John Patrick Afari is born.
1913 (May) - Railway reaches Mangoase from Accra - Main Accra to Kumasi railway line. Railway from Accra through Mangoase to Kumasi constructed by an Irish Firm W. H. Murphy from Dublin.
1917 (assumed) - John Patrick Afari leaves Achimota Technical College in Accra.
1920 - J. P. Afari flies his small scale prototype helicopter at Old Mangoase. It was a success though it did get stuck in a tree. Link to the entry on this subject is here
1938 (March) - Farmers march in Mangoase to the site of the cocoa crop burning, known as the the cocoa crisis! The cocoa crisis was due to prices being lowered by the big purchasers and issues with Swollen Shoot. (1937-1938).
1940 - (assumed) John Patrick Afari dies.