発明の年表
1. Timeline of historic inventionsThe timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a more practical form. Where there is ambiguity, the date of the first known working version of the invention is used here.
Read “Timeline of historic inventions” on English Wikipedia
Read “発明の年表” on Japanese Wikipedia
Read “Timeline of historic inventions” on DBpedia
Read “Timeline of historic inventions” on English Wikipedia
Read “発明の年表” on Japanese Wikipedia
Read “Timeline of historic inventions” on DBpedia
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