Explanation

 The first mechanical computer was designed by Charles Babbage.

Analytical Engine, generally considered the first computer, designed  by Charles Babbage

In the 19th century (he worked on it until he died in 1871).

Explanation

The digital computer, capable of processing data in binary code (0s and 1s), was primarily developed in the USA.

John Vincent Atanasoff, an American-Bulgarian physicist, invented the first electronic digital computer in the 1930s at Iowa State College.

Explanation

The antibiotic substance "penicillin" was discovered by Alexander Fleming, a Scottish scientist.

In 1928, he noticed that a mold called Penicillium notatum had antibacterial properties.

This leading to the development of penicillin as a crucial antibiotic.

Explanation

The Adventures of Tom Sawyer is a novel written by Mark Twain, 

The book was first published in 1876

It is a classic of American literature, depicting the adventures of a young boy named Tom Sawyer 

Explanation

Nigeria is the first country in the world to introduce vaccine for meningitis

Nigeria has become the first country in the world to roll out the "revolutionary" new Men5CV vaccine against meningitis.

Nigeria is one of the hotspots of the deadly disease in Africa.

In 2023, a 50% rise in annual cases was reported across 26 African countries regarded as meningitis hyperendemic countries

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Explanation

In May 2024, archaeologists of Serbia discovered a 7000-year-old prehistoric settlement.

This pre-historic is believed to be dating back approximately 7,000 years to the late Neolithic period, where this settlement is situated near the Tamis River in the Banat region of northeastern Serbia.

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Explanation

Researchers discovered the world's deepest known blue hole in Mexico.

The blue hole is named as 'Tam Ja Blue Hole (TJBH). 

Taam Ja' Blue Hole is the deepest known underwater sinkhole in the world, researchers have discovered — and they haven't even reached the bottom yet.

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Explanation

The concept of the 'invisible hand' was introduced by Adam Smith.

It describes how individuals pursuing their own self-interest unintentionally contribute to the overall economic well-being of society.

Explanation

Thomas O. Mensah is a Ghanaian-American chemical engineer and inventor.

He joined Corning Glass Works in 1983, working on fiber optics research in Sullivan Park, New York.

Charles Kuen Kao is known as the "father of fiber optic communications."

Shirley Ann Jackson made a breakthrough in fiber optics.

Explanation

Popcorn, a type of maize, was first cultivated and popped by Native Americans (Charles Creator).

Long before the arrival of European settlers.