geologic time scale.
i got this answer from a final in my science class
Hamburger Hill was the 101st Air Cavalry Division and the 1st Cavalry Division, both Army units.
Periods
They were called legions, with six to ten thousand men, the equivalent of a division in a modern army.
The 34th "Red Bull" Infantry Division was one of the earliest units to arrive in England. Also the 1st Armored Division arrived there and transitioned to the newer Sherman tanks. Both of these units were the first to be sent into combat in North Africa.The 1st Infantry Division arrived early in UK, I believe.Since the 34th Division fought continually in N. Africa, and Italy, it accrued more time in combat then the 1st Infantry Division, which was taken out of combat for training in preparation of the D-Day landings.Custermen
During the Vietnam War, particularly from 1968 to 1970, the US Army deployed various combat units throughout South Vietnam to engage in military operations against North Vietnamese forces and the Viet Cong. Key units included the 1st Infantry Division, 101st Airborne Division, and the 25th Infantry Division, which were stationed in regions such as the Mekong Delta, Central Highlands, and near major urban areas like Saigon. The map of these units would illustrate their locations, operational zones, and the dynamics of troop movements in response to the evolving conflict during that period.
So you can understaned it much more better and think about it!
So you can understaned it much more better and think about it!
Geologists have divided Earth's history into manageable units called eons, eras, periods, and epochs. These divisions help scientists study and understand the Earth's geological and biological history over millions of years.
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Periodization
historians
Periodization
Periodization
The geological time scale divides Earth's history into several hierarchical units: eons, eras, periods, epochs, and ages. The largest division is the eon, which is further subdivided into eras, and then into periods and epochs. For example, the current geological epoch is the Holocene, which is part of the Quaternary period, within the Cenozoic era of the Phanerozoic eon. This system helps scientists organize and understand the chronological sequence of Earth's geological and biological history.
Rainbow division.
The units of geologic time, from shortest to longest, are as follows: epoch, period, era, and eon. An epoch is the smallest unit, representing a subdivision of a period, which is a division of an era. Eras are then grouped into eons, the largest units of geologic time that encompass significant spans of Earth's history.
The division of a political unit (country) into smaller units.