Wikipedia

File:Ming Dynasty eruptor proto-cannon.jpg

Original file (638 × 818 pixels, file size: 137 KB, MIME type: image/jpeg)

Summary

Description
English: An illustration of an "eruptor," a proto-cannon, from the 14th century Ming Dynasty book Huolongjing. The cannon was capable of firing proto-shells, cast-iron bombs filled with gunpowder.
Date 14th century
date QS:P,+1350-00-00T00:00:00Z/7
Source Huolongjing, from Science and Civilisation in China p.266
Author Jiao Yu and Liu Ji
Other versions

Licensing

This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain".
This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current15:01, 17 April 2013Thumbnail for version as of 15:01, 17 April 2013638 × 818 (137 KB)Rurik the VarangianUser created page with UploadWizard

Global file usage

The following other wikis use this file:

Retrieved from "https://en.wikipedia.org/wiki/File:Ming_Dynasty_eruptor_proto-cannon.jpg"