Se-tenant: Evolution of Knowledge and Technology (Uruguay 1991)
Evolution of Knowledge and Technology (Uruguay 1991)
23 April (Uruguay ) within release Evolution of knowledge and technique goes into circulation Se-tenant Evolution of Knowledge and Technology face value 900 Uruguayan new peso
| Se-tenant Evolution of Knowledge and Technology in catalogues | |
|---|---|
| Michel: | Mi: UY 1894-1897 |
| Stamp Number: | Sn: UY 1364 |
| Stanley Gibbons: | Sg: UY 2022-2025 |
| Ciardi: | Cia: UY 1347-1350 |
Se-tenant is square format.
Printed by National Print, Montevideo in numbered sheets of 16 stamps and nine labels. Designed by Rodolfo Candán. Se-tenant block of four stamps.Also in the issue Evolution of knowledge and technique:
- Stamp - Megalithic monument face value 120;
- Stamp - Wheel, pyramids face value 120;
- Stamp - Printing press, solar system discovery face value 330;
- Stamp - Satellite face value 330;
- Se-tenant - Evolution of Knowledge and Technology face value 900;
Se-tenant Evolution of Knowledge and Technology it reflects the thematic directions:
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins c. 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared c. 5,200 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently.
Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts,including both tangible tools such as utensils or machines, and intangible ones such as software. Technology plays a critical role in science, engineering, and everyday life.
A tool is an object that can extend an individual's ability to modify features of the surrounding environment or help them accomplish a particular task. Although many animals use simple tools, only human beings, whose use of stone tools dates back hundreds of millennia, have been observed using tools to make other tools.
