The burials have some common features as:
(i) The dead were buried with distinctive pots, which are called Black and Red Ware. 
(ii) Moreover tools and weapons of iron and sometimes, skeletons of horses, horse equipment and ornaments of stone and gold are found in these burials.

Kings of China got suribes to write questions on the bones of animal called oracle bones. For example would they win battles? Would the harvest be good Would they have sons? The bones were then put into the fire, and they cracked because of the heat. Fortunetellers studied the cracks of oracle bones. They tried to predict the future. They sometimes made mistakes also.

The Rigveda is the oldest Veda, composed about 3500 years ago. It includes more than a thousand hymns called sukta or "well-said". These hymns are in praise of various Gods and Goddesses. Three Gods are especially important:Agni, the God of fire; Indra, a warrior God, and Soma, a plant from which a special drink was prepared.

Sometimes people decide on the basis of what is found with the skeleton. For instance, if a skeleton is found with jewellery, it is sometimes thought to be that of a woman. However, there are problems with this, often men also wore ornaments like women. A better way of deciding the sex of a skeleton is to look at the bone structure. The hip or the pelvic area of women is generally larger to enable child bearing. This modern skeletal studies help us to determine correctly the sex of a skeleton.

Tools and weapons made up of iron are found in the Harappan cities.

(i) Rigveda 
(ii) Kashmir
(iii) Pune, Maharashtra

The silent sentinels behind the story of the megaliths were as follow:
(i) The big stones or the stone boulders are known as megaliths which were carefully arranged by people, and were used to mark burial sites.
(ii)The practice of erecting'megaliths began about 3000 years ago, and was prevalent throughout the Deccan, South India, in the North-East and Kashmir.
(iii) Some of the megaliths can be seen on the surface, other megalithic burials are often underground.
(iv) Archaeologists often find that a circle of stone boulders or a single large stone standing on the ground, are the only indications of burials.
(v) The burials have some common features as the dead were buried with distinctive pots, which are' called Black and Red Ware. Tools and weapons of iron and sometimes, skeletons of horses, horse equipment and ornaments of stone and gold are also found.

From the Rigveda we know that there was no regular army at that time. There were assemblies where people met and discussed matters of war and peace. Most men took part in the battle. They chose leader who were brave and skilful warriors. Leaders used horse chariot in the battlefield. Battles were usually fought for land and water. Sometimes battles were also fought for cattle and people Capturing people the rajas made them as dasas (slaves). The power and strength of the Raja depend on land and cattle they had. Initially the struggle was between the Arya tribes and non-Arya tribes As the domination of Arya tribes increased, the power struggle between the Arya tribes seem to have begun.