Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A seamless background pattern with impressed gray dots.
Source V. Hartikainen
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 2
Source GDJ
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
From a drawing in 'An Old Maid's Love. A Dutch tale told in English', Maarten Maartens, 1891.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A light gray background pattern with seamless fabric-like texture and almost unnoticeable stripes.
Source V. Hartikainen
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968