Indonesia, actually.
The earliest known origin of cinnamon, real cinnamon, is Sri Lanka. It was traded in East Africa and made it's way on the spice caravans to the Middle East and Europe. Real Sri Lanka cinnamon or Ceylon cinnamon are extremely expensive today, and most of what passes as cinnamon is actually cassia.
We get from cinnamon tree
"Here I come, I am "Ceeneemohn" (Cinnamon, but pronounced with a Jamaican accent).
England
From Basil plants. Dah!
Ceylon cinnamon and Saigon cinnamon are not the same; they come from different species of the cinnamon tree. Ceylon cinnamon, also known as "true cinnamon," is milder and sweeter, while Saigon cinnamon, derived from the Cassia tree, is more robust and has a stronger flavor. Additionally, Ceylon cinnamon contains lower levels of coumarin, a compound that can be harmful in large amounts, compared to Saigon cinnamon. Therefore, they differ in taste, aroma, and health considerations.
Mexico
Cinnamon is the bark of a tree. The most common cinnamon sold in North America is from the Cassia, it is generally sweeter and more aromatic than true cinnamon but has an astringent edge. True Cinnamon (Ceylon) is from Sri Lanka and is the bark of an evergreen tree related to the bay laurel. It has a thinner bark and more delicate flavour than the cassia cinnamon.
Cinnamon comes from the inner bark of Cinnamomum trees. Cinnamon is a spice that is often added to recipes by cooks.
Everyone loves a good cinnamon bun but not the calories that come from eating one. On Doctor Oz's website one can find a lower calorie recipe for cinnamon buns.
Well, honey, "cinnamon toast" is a common noun. It's not a specific brand or name, just a general term for toast sprinkled with cinnamon. So, unless you know a fancy toast named Cinnamon, it's as common as they come.
It should be on the label but it is probably cassia, which is the most common culinary version.