A pale olive green background with a seamless texture.
Source V. Hartikainen
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A comeback for you: the popular Escheresque, now in black.
Source Patten
Here I have tried to create something that would look like maple wood. Not sure how well it's turned out, but at least it looks like wood.
Source V. Hartikainen
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
8 by 8 pixels, and just what the title says.
Source pixilated
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Retro Circles Background 7 No Black
Source GDJ