When being drunk not made What is the difference between Bourbon and Scotch and Irish and American and Canadian?

Bourbon is whiskey made in Kentucky, specifically Bourbon County: Maker's Mark

Scotch is blended whiskey made in Scotland: Johnny Walker

Irish whiskey is made in Ireland. It can be Single Malt (Glendfiddich), double malt or more.

American whiskey is that which is not made in Bourbon County: Jack Daniels.

Canadian whiskey is that which is made in Canada: Seagrams, Candian Club.