This is good.  Fly fishing is an angling method in which an artificial
How is the fishing process done?
Wow, is simple. Casting a nearly weightless fly or "lure" requires casting techniques significantly 
OK,when was the history of the fishing process?
Wow, I love this. North Americans usually distinguish freshwater fishing between cold-water species (trout, salmon, steelhead) and warm-water species
What distinguishes them ?
You will be surprised. Fly fishermen use hand tied flies that resemble natural invertebrates, baitfish, other food organisms, 
How long has the fishing style been existing?