A free program for Android, by LearnProID.

What is history? It is the study of the past, of the evolution of mankind, of the events that have shaped our world, and of the interactions between people and the environment. It is a branch of science that is concerned with the study of the past, with the interpretation of the evidence that we have, and with the knowledge that we can gain from the study of the past.

The history of our world civilization has been evolving for thousands of years, and it is impossible to say that one history is more important than another. However, there are certain periods in our world history that can be more easily identified than others. These periods are marked by the development of new technologies, the formation of new societies, and the changing of our world.

Our history can be divided into four main periods: the ancient era, the medieval era, the modern era, and the era of modern science and technology. Each of these periods is a distinct era in our world history, and each era has its own characteristics.