1958 introductions

Hanyu Pinyin, or simply pinyin (pīnyīn), officially the Chinese Phonetic Alphabet, is the most common romanization system for Standard Chinese. Hanyu literally means —that is, the Chinese language—while pinyin literally means 'spelled sounds'. Pinyin is the official romanization system used in China, and Singapore, and by the United Nations. Its use has become common when transliterating Standard Chinese mostly regardless of region, though it is less ubiquitous in Taiwan. It is used to teach Standard Chinese, normally written with Chinese characters, to students in mainland China and Singapore

singles chart in the Unites States

character-recognition technology

adaptation of a psychological theory originally conceived by the Swiss psychologist Jean Piaget

The smoot is a nonstandard, humorous unit of length created as part of an MIT fraternity pledge to Lambda Chi Alpha by Oliver R. Smoot, who in October 1958 lay down repeatedly on the Harvard Bridge between Boston and Cambridge, Massachusetts, so that his fraternity brothers could use his height to measure the length of the bridge.

roadside church

theory regarding international relations and war

second period of human occupation in the Americas

labelling medium usually of hard plastic

the relationship between unemployment and job vacancy rate

America

period in the archaeology of the Americas (1000 BCE – 500 CE)

America

highly symmetric cubic graph with 30 vertices and 45 edges

North American prehistoric period before 10,000 years ago