I abruptly decided that I was tired of the 19th century, and to go back to prehistory.
Pliocene prehistory is focused on the earliest origins of humanity, as revealed by investigation of skeletal remains by archaeologists, primarily of the 20th century. These are limited to Africa, which is still being connected. Stone age developments are also being considered. The origins of the institutions ought to be traced, but the evidence is still unclear. Most of the evidence consists of stone tools and skeletal remains, or what I call “stones and bones”.
Early Pleistocene prehistory likewise is limited to principally the 19th century, and mostly limited to Africa. along with stone age developments and institutional origins. The evidence is still mostly stones and bones.
Early mid Pleistocene prehistory. This began to be studied in the 19th century, and is better known in the 20th century. Remains of are found in Africa, Asia, and Europe. This is still mostly concerned with stone age developments and hunting and gathering society. The role of institutions is not yet clear. Evidence is still mostly stones and bones. I have not yet examined culture enough to distinguish the various types of stone industries, but this important in the archaeology of this period. The predominant species of this period is believed to be homo erectus.
For Western Civilization, I have made connections to human geography as far as it has been developed.
The history of institutions through middle prehistory has been rewritten. Science has also been connected to details of human geography as far as they are developed.