The Lights Are Going Out is a set of free wargames rules for WWI in 1914. The rules are designed for 15mm figures.
The Miniature Wargaming Editor
Eagle Rampant — Roman Variant For Lion Rampant
Eagle Rampant is a Roman Ancients variant for Osprey Games’ Lion Rampant rules for small scale medieval wargaming.
And an after-action playtest report.
Vietnam Skirmish Rules
The Black Dog of Doom offers a set of free wargames rules for Vietnam Skirmishes.
The author writes:
This is a set of wargame rules for playing a middling size skirmish set in the American/Vietnam war. The rules were written for use with 20mm metal minis and have been used in that role a number of times.
As well as the figures and terrain, you will also need to supply some standard dice, a measuring stick, lots of tiddley winks and some crunched up balls of paper!
The rules feature the use of supressing fire which will pin all but the bravest of warriors. In game terms, supressing fire reduces the ability of the supressed to interfere with your plans.
Also included are some rules for handling vehicles and artillery fire, although these features are not expected be the focus of the game. In play each player will easily be able to handle 20-30 figures.
Bayeux Tapestry
The Bayeux Tapestry is one of the more famous works of art in all of history. This site breaks the tapestry down into slices and describes the historical background behind each segment.
Ten Days That Shook The World – Free EBook
Available for free from Amazon, Ten Days That Shook The World is John Reed’s first hand account of the October 1917 Russian Revolution. It was the basis of the movie, Reds. Reed was a socialist American journalist who is buried at the Kremlin.
It is, as you might expect, politically explosive and the target of praise or criticism, depending upon which side of the spectrum you sit.