Neolithic Revolution as irrigation and deforestation which allowed the production of surplus food. Other developments found very widely are the domestication of animals, pottery, polished stone tools, and rectangular houses. These developments, sometimes called the Neolithic package, provided the basis for centralized administrations and political structures, hierarchical ideologies, depersonalized systems of knowledge (e.g. writing), densely populated settlements, specialization and division of labour, more trade, the development of non-portable art and architecture, and property ownership. The earliest known civilization developed in Sumer in southern Mesopotamia (); its emergence also heralded the beginning of the Bronze Age. The relationship of the above-mentioned Neolithic characteristics
In the Neolithic Age styles in his poetry. He had also been reluctant to criticize other writers after becoming well known. In 1896, now titled "In the Neolithic Age", the poem was published in Kipling's next volume of poetry, "The Seven Seas". He placed it between two other poems about tribal singers, "The Last Rhyme of True Thomas" and "The Story of Ung". The narrator is a Stone Age tribal singer who reacts badly to criticism of his work. He also deals badly with other artists whose work he dislikes. He kills a younger singer as well as a cave painter. <poem>Then I stripped