There are many answers to this question and it is all down to your opinion. for example some people may say that guns have benefited mankind the most but i disagree and think that they should never have been invented.
My answer to this question is the invention of the usage of fuels because without fuels we would not have things such as electricity and without this the internet, computers phone etc would all be useless and if e could not use fuels so would cars and planes.
Sorry, but this is a very subjective question. Because an invention that has benefited you may have harmed someone else.
he found the principle for the birds lift which benefited people to discover the air planes.
The wheel is the greatest invention ever with out it we would have never had wars and some people wouldn't have died and you might not be born.
The greatest invention ever built by mankind was probably the electric wire system that allowed us to invent further technology like computers.
New inventions such as the washing machine benefited women because it enabled them to have less work and more free time.
Farmmers
commerce and news
The wheel and internet
Sorry, but this is a very subjective question. Because an invention that has benefited you may have harmed someone else.
i think its the tv or bra
she suck
The original product benefitted farmers with mule-drawn plows since they tended to clog less.
There are a lot of things that could be done to help mankind. The invention of airplanes was a great achievement that has changed mankind.
Pretty much all scientists, teachers of science, and students of science have benefited from the invention of the periodic table.
Well they give of rides, in the olden days they carried are luggage. they are fantastic companions to
he found the principle for the birds lift which benefited people to discover the air planes.
it is not only the Arabs that benefited from Muhammad pbuh's teaching but it is the whole mankind that has benefit