Just off the first few things in the list, and using Wikipedia (yes, yes, I know a terrible source)

Paper:

The first paper-like plant-based writing sheet was papyrus in Egypt, but the first true papermaking process was documented in China during the Eastern Han period (25–220 AD),

Chess:

The recorded history of chess goes back at least to the emergence of a similar game, chaturanga, in seventh century India. The rules of chess as they are known today emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century.

Alphabets:

The first letters were invented in Ancient Egypt to aid writers already using Egyptian hieroglyphs, now referred to by lexicographers as the Egyptian uniliteral signs.....The first fully phonemic script was the Proto-Sinaitic script, also descending from Egyptian hieroglyphics, which was later modified to create the Phoenician alphabet. The Phoenician system is considered the first true alphabet and is the ultimate ancestor of many modern scripts, including Arabic, Cyrillic, Greek, Hebrew, Latin, and possibly Brahmic.

Medicine:

The earliest known medical texts in the world were found in the ancient Syrian city of Ebla and date back to 2500 BCE.

Civilization:

The Natufian culture in the Levantine corridor provides the earliest case of a Neolithic Revolution, with the planting of cereal crops attested from c. 11,000 BCE. The earliest neolithic technology and lifestyle were established first in Western Asia (for example at Göbekli Tepe, from about 9,130 BCE), later in the Yellow River and Yangtze basins in China (for example the Peiligang and Pengtoushan cultures), and from these cores spread across Eurasia. Mesopotamia is the site of the earliest civilizations developing from 7,400 years ago.

Airplane Propeller: "Adams" is not even mentioned in the Propeller_(aeronautics) article.

So, yeah, out of the first 6 items, being SUPER generous "Africa" gets 1 point - half a point for proto-paper and half a point for proto-alphabet. And both of those are Egypt, not sub-saharan Africa.

The actual rundown:

Middle East: 3 points - alphabet, medicine and civilization

China: 2 points - Paper, 1/2 point on civilization and 1/2 point on propeller

Europe: 1.5 points - Propeller, 1/2 point on chess

India (tie): 1 point - chess

Egypt (tie): 1 point - 1/2 point on paper, 1/2 point on alphabet.