From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Remixed from a drawing in 'Incidents on a Journey through Nubia to Darfoor', F. Ensor, 1891.
Source Firkin
Colorful Floral Background 3 No Black
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
Zero CC tileable ground cracked, crackled, texture, made by me.
Source Sojan Janso
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen