Terry Welch

Directory

References

Discover

Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.

Why Is the Mona Lisa So Famous?

Thanksgiving Celebration Traditional Dinner Setting Food Concept

Why Is Thanksgiving in the U.S. Celebrated on a Thursday?

A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England

Inventors and Inventions of the Industrial Revolution

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

Artwork for themes for Pro-Con articles.

Pro and Con: Gun Control

Thanksgiving Turkey with all the sides

Why Do We Eat Turkey on Thanksgiving?

Terry Welch

American computer scientist

Learn about this topic in these articles:

development of GIF

In GIF
…Jacob Ziv of Israel and Terry Welch of the United States. LZW was the source of a controversy started by the American Unisys Corporation in 1994, when it was revealed that they owned a patent for LZW and were belatedly seeking royalties from several users. Although the relevant patents expired…
Read More