Perhaps this will help.
Ancient origins
The word democracy was coined in ancient Greece. Although Athenian democracy is today considered by many to have been a form of direct democracy, originally it had two distinguishing features: firstly the allotment (selection by lot) of ordinary citizens to government offices and courts, and secondarily the assembly of all the citizens. All the Athenian citizens were eligible to speak and vote in the Assembly, which set the laws of the city-state, but neither political rights, nor citizenship, were granted to women, slaves, or metics. Of the 250,000 inhabitants only some 30,000 on average were citizens. Of those 30,000 perhaps 5,000 might regularly attend one or more meetings of the popular Assembly. Most of the officers and magistrates of Athenian government were allotted; only the generals (strategoi) and a few other officers were elected.
One of the earliest instances of civilizations with democracy, or sometimes disputed as oligarchy, was found in the republics of ancient India, which were established sometime before the 6th century BC, and prior to the birth of Gautama Buddha. These republics were known as Maha Janapadas, and among these states, Vaishali (in what is now Bihar, India) would be the world's first republic. The democratic Sangha, Gana and Panchayat systems were used in some of these republics; the Panchayat system is still used today in Indian villages. Later during the time of Alexander the Great in the 4th century BC, the Greeks wrote about the Sabarcae and Sambastai states in what is now Pakistan and Afghanistan, whose "form of government was democratic and not regal" according to Greek scholars at the time.
The Roman Republic had elections but again women, slaves, and the large foreign population were excluded. The votes of the wealthy were given more weight and almost all high officials come from a few noble families.
Democracy was also seen to a certain extent in bands and tribes such as the Iroquois Confederacy. However, in the Iroquois Confederacy only the males of certain clans could be leaders and some clans were excluded. Only the oldest females from the same clans could choose and remove the leaders. This excluded most of the population. An interesting detail is that there should be consensus among the leaders, not majority support decided by voting, when making decisions. Band societies, such as the bushmen, which usually number 20-50 people in the band often do not have leaders and make decisions based on consensus among the majority.
Any more information you need, check out the wiki on it.
http://en.wikipedia.org/wiki/Democracy