|Wikimedia Commons has media related to 1866 establishments.|
|Pages in this category should be moved to subcategories where applicable. This category may require frequent maintenance to avoid becoming too large. It should directly contain very few, if any, pages and should mainly contain subcategories.|
This category is for organizations, places or other things founded or established in the year 1866.
See also: Category:1866 disestablishments
This category has the following 18 subcategories, out of 18 total.
- ► Awards established in 1866 (2 P)
- ► Buildings and structures completed in 1866 (14 C, 33 P)
- ► Cabinets established in 1866 (5 P)
- ► Event venues established in 1866 (3 C, 3 P)
- ► Noble titles created in 1866 (19 P)
- ► Organizations established in 1866 (13 C, 15 P)
- ► Zoos established in 1866 (1 P)