History
Mancala may well be the oldest board game in the world since, like Morris variations, it can be easily played with whatever medium happens to be around. For instance, in Africa, people often play with pebbles using hollows scooped into the earth, with cowrie or other seashells in rings in the sand or specially carved wooden board with seeds. It is a wholly mathematical game - its more complex versions have as much scope as Chess, despite its primitive origins.
Stone Mancala boards have been found carved into the roofs of temples in Memphis, Thebes and Luxor - the game was definitely being played in Egypt before 1400BC. It appears that the game might have evolved in Egypt from boards and counters which were used for accounting and stock taking; evidence for such record keeping boards having been found in even more Ancient Sumeria as well as Ancient Egypt.
The Game Today
Mancala variations are played all over Africa, the two rank Mancala board generally being found north of the equator, the four rank boards, South of the Equator. They also are to be found throughout the Caribbean and on the East Coast of South America having emigrated with by slaves during the colonial expansion era. There are also versions in India, Sri Lanka, Indonesia, Malaysia ("congkak", pronounced Chon-ka) and the Philippines.
Mancala is played by literally hundreds of tribes throughout Africa, most of whom play their own slightly different variation and have their own special name for it. In fact, to exemplify the difficulty in delving into this subject, here are some variants of the name 'Wari':
Wari, Warri, Ware, Walle, Awari, Aware, Awaoley, Awele, Oware, Owari, Wouri
To confuse things further, some names of Mancala games are generic referring to all Mancala games in a particular region rather than a particular variant. Generic names include Bao, Soro (Choro or Solo), Mangola, Gabata, Mulabalaba, Ayo and Sadeqa. Of course these can refer to specific variants, too.
The two best know Mancala games are Ayo from Nigeria and Wari which is played without much variation across West Africa and much of the Caribbean.
There are several main ways that Mancala games differ from one another. Most obviously the number of rows on the board differentiates Mancala games into three sorts - two rank, three rank and four rank Mancala.
A second important differentiate is whether the game is single lap, multiple lap or has "Indian-style" laps. In single lap games, a go consists of the seeds from one hole being picked up and placed in subsequent holes. In multiple lap games, if the last seed placed is in a hole already containing one or more seeds, the contents of this hole are then picked up and the seeds distributed in the same way again. A player's turn only comes to an end when the last seed of a 'lap' ends up in an empty hole. Indian style laps are multiple laps but at the end of each lap, the seeds from the hole following the hole in which the last laps' final seed was placed are taken for the next lap. The turn finishes when the hole following the hole in which lap's final seed was placed is empty.
An example of Indian-style laps is the Indian game Pallanguzhi, also sometimes spelt Pallanguli.
The Sri Lankans play a game called "Olinda Kaliya" which uses Indian Style laps. The characteristic seeds used for the game, bright scarlet with black tips, are from this Olinda bush.
This is an Olinda bush observed in Anuradhapura, Sri Lanka.
Where to Buy
Masters Traditional Games sells some genuine Oware boards - both normal size and Table Boards.
Links
Make your own Mancala board from 2 egg boxes
The rules for Oware and a quite complex version of Bao can be obtained from Masters Traditional Games.
African Games and Links from Edward Brisse
Mancala Boards of the British Museum by Patty A. Hardy - great pictures!