Final answer:
The Lenape society in 1400 A.D. with leaders chosen for specific purposes and equal resource access is an example of an egalitarian society, characterized by temporary leadership and collective ownership.
Step-by-step explanation:
The society of the Lenape people that you've described, where leaders were chosen for specific purposes and there was more or less equal access to resources with situational leadership and no permanent hierarchy, is an example of an egalitarian society. Egalitarian societies are characterized by a lack of rigid social hierarchies and formalized social stratification. Oftentimes, these societies exhibit patterns of equality regarding access to resources and political influence, and leadership roles are situational, selected based on skill or need for specific tasks rather than on an inherited or formal authority.
In this sense, acephalous or band societies are typical examples of egalitarian structures where decision-making is collective and consensus-driven, and no one individual wields absolute power or authority over others. The role of extended-family leaders, temporary leadership, and access to natural resources all reflect a society where the notion of collective ownership and community decision-making prevails over individual control.
Furthermore, the Lenape and other indigenous societies often had practices in place that prevented the hoarding of power and resources and emphasized community well-being over individual gain, contrasting significantly with European models of land ownership and governance introduced during colonization.