The only event the Time Almanac has listed under 4.5 billion B.C. is this "formed"
The concept of Deep Time has been around since 18th century Geologist ... Or, in 
another, if we compress the Earth's 4.5 billion years existence to a ... land that 
was formed by the Wisconsin glaciation and once under Lake Iroquois, ... public 
workshops, and events that span multiple art forms and platforms.