Which invention has benefited mankind the most?

[Desinishon]

Like title state, science has invented so many useful things for us but which one you think benefited humankind most? There are so many too pick from bulb, TV, vehicles, internet, games ( #no.1 ) xD, nuclear weapons ( I'm kidding xD) so what do you guys think?

 

[gimmepie]

The simple stone tools of our ancestors not only lead the way to us developing every other human invention but are also the only reason early humans were able to survive and prosper enough for their predecessors to eventually come along and invent new things.

So my votes goes to anything fitting that category.

 

[Corrin]

The toilet and sewer systems.
Think of how sick people got in the time there wasn't any? I'm glad we have such a system!

 

[Tsutarja]

There's a lot of things I could say, but one that sticks out in particular to me is the innovation of air conditioning.

 

[Lucario]

Affordable refrigeration for food.

 

[Shamol]

As a microbiologist my first instinct is to say vaccines, but Pie's answer is very appropriate as well.

 

[Zet]

Sliced bread.

I don't know how many people went insane slicing loaves of bread in the past, so I'm thankful for this invention that makes our sandwich making lives easier.

 

[Mantic0re]

Internet is the best invented thing