Design History: Economic Trends

Ticker Tape Stock Ticker invented by Edward Calahan in 1860s used Morse code, evolved from telegraph technology makes “ticking” noise as it works Edison’s Telegraph Printer 1867 printed alphanumeric numbers, readable text by 1880s, ~1000 stock tickers installed in offices of New York bankers 1970s stock price boards, then magnetic tape and computer terminals other …

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Design History: Timelines

Strom der Zeiten (1804) Fredrich Strass, German “Rivers of Time” metaphor of “liquidity” of time Creation at top, but does not start with Biblical time Asian empires on the right, uninterrupted Roman Empire, takes up much of the middle of the graph English translation used much bolder colors, but gained more popularity Synchronological Chart of …

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