Conversation so far:
what are the dimensions of the canadian flag
The National Flag of Canada is twice as long as it is wide, or 64 units in length and 32 units in width or depth.
when was the canadian flag approved
The National Flag of Canada was approved by Parliament in 1964 and proclaimed by Her Majesty Queen Elizabeth II to take effect on February 15, 1965.
what does the canadian flag look like
In its centre is a white square the width of the Flag, with a single red maple leaf in the centre.

Question: what does the leaf symbolize
Self-contained rewrite: what does the leaf on the canadian flag symbolize