In which decade did Count Von Zeppelin patent and begin constructing his first guidable rigid airship?
Eighteen-nineties 1890–1899 1890’s 1890-1899 Mauve Decade 1890s (decade) 1890's 1890s
1890–1899 1890 1899 1890 s mauve decade 1890s decade 1890s eighteen nineties
1890s
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1890s