It seems that the brain does a major cross-over to the body. LH side controls the RH side & visa-versa.
If someone is LeftHanded, (
I am), then it generally means that the RH side of the brain is 'more' developed.
In the RH side of the brain, there is a predominance of control/ability towards things like...
Artistic Flair, Abstract Thinking, Balance, Coordination etc., and hence a lot of the worlds 'thinkers' are Left
Handed. (Including the likes of Poetry, Flair, Music, Maths etc..) I don't profess to 'fit' that norm though.
In fact, I've changed over the years!! I write LH, but do detailed computer graphics using a
RH Mouse!!!
I throw with my LH, but kick a ball with my Right-Foot. Can use a Snooker-Cue in either hand, but mainly right.
When I was a kid, in the 1950's, we used
ink Nib pens, and your hand could smudge your work! And virtually
all modern Ledger/Receipt books are made for RH people, and so not cramming text into the binding!!!
In times of old, 'Lecherous' meant LH, and 'Righteous' meant of the Right Hand. Don't know about that... but
there are a shit load of scientific, astronomical, mathematical people of old that were left handers!!
I usually tell people that I'm 'Ambidextrous' with a WheelBarrow!!