They could have a char once a fortnight for a scrub-down and the heavy washing. The Combined Maze May Sinclair In an hour I had landed twelve trout and char, weighing 10Â½ lb. Sport in Vancouver and Newfoundland John Rogers In this light they were considered by the parliament in the 25 char.
The geologic time scale that represents the longest time span is  the eon. It is a unit of time that is equal to a billion years.
The Geologic Time Scale. The 4.55 billion-year geologic time scale is subdivided into different time periods of varying lengths. All of Earth history is divided into two great expanses of time. The Precambrian began when Earth first formed 4.55 billion years ago and ended about 570 million years ago.