Editing 1913 (section)

=== April ===
{{Main|April 1913}}
* [[April]] &ndash; [[Bernhard Kellermann]]'s novel ''[[Der Tunnel (novel)|Der Tunnel]]'' is published.
* [[April 5]] &ndash; The [[United States Soccer Federation]] is formed.
* [[April 8]] – The [[Seventeenth Amendment to the United States Constitution]] is passed, dictating the direct election of senators.
* [[April 21]] &ndash; [[Cunard Line|Cunard]] [[ocean liner]] {{RMS|Aquitania}}, built by [[John Brown & Company]], is launched on the [[River Clyde]].
* [[April 24]] &ndash; The [[Woolworth Building]] opens in New York City. Designed by [[Cass Gilbert]], it is the [[List of tallest buildings in the world|tallest building in the world]] on this date, and for more than a decade after.<ref name="WDL">{{cite web|url=http://www.wdl.org/en/item/11376/|title=Study for Woolworth Building, New York|website=[[World Digital Library]]|date=1910-12-10|access-date=2013-07-25|archive-date=September 27, 2013|archive-url=https://web.archive.org/web/20130927124658/http://www.wdl.org/en/item/11376/|url-status=dead}}</ref>