Matches in DBpedia 2015-10 for { ?s ?p "Conrad Haas (1509–1576) was a military engineer for the Kingdom of Hungary and Principality of Transilvania, who is often cited as the first person to describe a multistage rocket in writing, although some historians attribute that distinction to Jiao Yu in 14th Century China.Haas was perhaps born in Dornbach (now part of Vienna). As the Zeugwart (equipment manager) and arsenal master of the Imperial Austrian army under Ferdinand I."@en }
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- Conrad_Haas comment "Conrad Haas (1509–1576) was a military engineer for the Kingdom of Hungary and Principality of Transilvania, who is often cited as the first person to describe a multistage rocket in writing, although some historians attribute that distinction to Jiao Yu in 14th Century China.Haas was perhaps born in Dornbach (now part of Vienna). As the Zeugwart (equipment manager) and arsenal master of the Imperial Austrian army under Ferdinand I.".