# Translation:On the spacetime lines of a Minkowski world

On the spacetime lines of a Minkowski world  (1912)
by Friedrich Kottler, translated from German by Wikisource
In German: Über die Raumzeitlinien der Minkowski'schen Welt, 1912, Wiener Sitzungsberichte 2a, 121: 1659-1759, Online
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Original: This work is in the public domain in the United States because it was published before January 1, 1924. The author died in 1965, so this work is also in the public domain in countries and areas where the copyright term is the author's life plus 50 years or less. This work may also be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works. This work is released under the Creative Commons Attribution-ShareAlike 3.0 Unported license, which allows free use, distribution, and creation of derivatives, so long as the license is unchanged and clearly noted, and the original author is attributed.