The most notable invention of the Han period was paper which spawned two new types of arts.

In this article, we'll consider 10 more notable inventions credited to African-American innovators.

Written language is a notable invention that is essentially a simple machine for the storage and retrieval of quite complex information.

One of his more notable inventions was a typewriter that would produce letter from breath rather than typing.

Mr. Johnson's first notable invention is familiar to anyone who has taken a standardized multiple-choice test.

One of their notable inventions was the single-eccentric reversing gear.

The most notable invention was the rise of typefaces with strengthened serifs.

To make a long story short, I will only tell you what happened to this notable invention of the scythe-spear.

Here, a look at 10 notable inventions credited to African-Americans innovators.

A notable invention from those years was wide view projection holography; he also wrote several textbooks in the field.