Few things one must remember
1) Inventions is name of page. But in each subpage, we cpver Discoveries & Inventions first and then the related discoverer or inventor.
We know it gives less importance to the scentist who discovered the related discovery or invention. So, we have decided that Inventions pages will share invention followed by the inventor. And we are making separate pages for Discoverers & inventors and in these pages the name of the person is shared first (giving importance to the human who discovered) and then the discovery or invention.

2) We know that some one great discovered a particular thing but the patent is on the name of not the discoverer or inventor but someone who has taken a patent for it. We cant help but to name the person on whose name there is patent because we know how it is important legally. We know but cant help because many things were discovered before patent was legally accepted.

Quiz
It is simple.
e.g. If you go to A, yo will see Adding Machine and then Pascal.
Here the question is Who discovered Adding Machine and the answer is Pascal.
We have not put Mr or Mrs or Miss or Male of Female or Transgender because these are great human beings.

Discovery
Discovered makes it clear.
It was there but was under cover. So dis covered it.
A discovery is recognizing something that already exists for the first time, that nobody has found before, e.g. how Christopher Columbus discovered the Americas.

Invention
An invention is creating something totally new with one's own ideas and development.

Difference between Discovery & Invention is BIG Question mark
With science progressing, tomorrow science will say that the "invention" that the world thinks, existed few thousand or few million years back. And share historical evidence.
So, we have pur discoveries and inventions together but under the name invention.

Again, let us be clear what we said earlier. Something was discovered or invented by some great but the patent of that is taken by someone else. So Patent is legally approved.

In any case, we have shared patent organisations separately.

Greats before patents entered this world
Archimedes was born c. 287 BC
Apollonius of Perga known for his work on conic sections born c. 240 BC


BC & AD
"AD" abbreviation before the year number like AD 62
"BC" is always placed after the year number like 62 BC

Since "BC" is the English abbreviation for Before Christ
it is sometimes incorrectly concluded that
AD means After Death (i.e., after the death of Jesus)
This would mean that the approximately 33 years commonly associated with the life of Jesus would be included in neither the BC nor the AD time scales.
AD correctly is Anno Domini
This dating system was devised in 525 by Dionysius Exiguus to enumerate years in his Easter table.

Patent
Word patent originates from the Latin patere, which means "to lay open"
It means to make available for public inspection.

In modern usage, the term patent usually refers to the right granted to anyone who invents something new, useful and non-obvious. A patent is often referred to as a form of intellectual property right, an expression which is also used to refer to trademarks and copyrights, and which has proponents and detractors.