Here's an awesome infographic put together by the good people at Best for the Kids. The exhaustive list is compiled after hours of research from more than 200 different references, so you might want to go through it with popcorns by your side.
Do remember that childhood is a crucial stage for the intellectual development of a child, so it makes sense to help them grow smart from a very early age.
Infographic by BestForTheKids.com
Our aim is to help our children discover their talents, realise their full potential, and develop a passion for life-long learning.