However, actual evidence suggests that organized, large-scale, militaristic, or regular human-on-human violence was absent for the vast majority of the human timeline, and is first documented to have started only relatively recently in the Holocene, an epoch that began about 11,700 years ago, probably with the advent of higher population densities due to sedentism. Social anthropologist Douglas P. Fry writes that scholars are divided on the origins of this greater degree of violence—in other words, war-like behavior: There are basically two schools of thought on this issue. One holds that warfare... goes back at least to the time of the first thoroughly modern humans and even before then to the primate ancestors of the hominid lineage. The second positions on the origins of warfare sees war as much less common in the cultural and biological evolution of humans. Here, warfare is a latecomer on the cultural horizon, only arising in very specific material circumstances and being quite rare in human history until the development of agriculture in the past 10,000 years. Jared Diamond in his books Guns, Germs and Steel and The Third Chimpanzee posits that the rise of large-scale warfare is the result of advances in technology and city-states. For instance, the rise of agriculture provided a significant increase in the number of individuals that a region could sustain over hunter-gatherer societies, allowing for development of specialized classes such as soldiers, or weapons manufacturers. In academia, the idea of the peaceful pre-history and non-violent tribal societies gained popularity with the post-colonial perspective.
This constitutes a violation of human rights and includes physical, sexual, psychological, emotional; financial and material abuse; abandonment; neglect; and serious loss of dignity and respect.While there is little information regarding the extent of maltreatment in elderly populations, especially in developing countries, it is estimated that 4–6% of elderly people in high-income countries have experienced some form of maltreatment at home However, older people are often afraid to report cases of maltreatment to family, friends, or to the authorities. Data on the extent of the problem in institutions such as hospitals, nursing homes and other long-term care facilities are scarce. Elder maltreatment can lead to serious physical injuries and long-term psychological consequences. Elder maltreatment is predicted to increase as many countries are experiencing rapidly ageing populations. Many strategies have been implemented to prevent elder maltreatment and to take action against it and mitigate its consequences including public and professional awareness campaigns, screening (of potential victims and abusers), caregiver support interventions (e.g. stress management, respite care), adult protective services and self-help groups. Their effectiveness has, however, not so far been well-established. Targeted
Several rare but painful episodes of assassination, attempted assassination and school shootings at elementary, middle, high schools, as well as colleges and universities in the United States, led to a considerable body of research on ascertainable behaviors of persons who have planned or carried out such attacks.