The end of the Ordovician was heralded by a mass extinction, the second largest in Earth’s history. (The largest mass extinction took place at the end of the Permian Period and resulted in the loss of about 90 percent of existing species; see also Permian extinction.) The Ordovician was ...
Use our Boston history timeline to learn about 400+ years of key events: Puritans, Tea Party, Revolutionary War, Great Molasses Flood, Marathon bombs, more.
and both parties’ allies in which the major power players sought to project their respective ideologies across the globe in the wake of colonialism’s collapse following World War Two. The period occurred between 1947, the year of the Truman Doctrine, and 1991, when the Soviet Union collapsed...
Timeline Video Quiz Course 40Kviews Examples of Different Perspectives When your great-grandparents were in school, they were very likely taught a very different version of historical events about slavery in the American South than we were. That's because for the longest time, history books only ...
Below is a timeline of the 5 largest mass extinctions in the Earth's history, the number of species lost in each event, and the theorized cause(s) for each event. Extinction events are named by listing the geologic time period that is ending first and the geolo...
Systematic observations of the Earth's surface by the geoscience community around the world have collected a gigantic amount of data and deduced a series of major catastrophic events, that dictate the evolution in the biosphere throughout the Earth's history, including the great oxidation event (...
Your timeline for a successful event From bid support, contract finalisation and strategic planning, to on-the-ground operations and post-event reviews, each stage is critical to ensure your security, resilience, and reputational protection throughout the event lifecycle....
This timeline of major events in ancient history includes dates and events that led to or impacted the great western civilizations of Greece and Rome.
This timeline of Cleopatra's life begins with her birth in Alexandria as a princess in thePtolemaic courtto her suicide in Alexandria a brief 39 years later. Birth and Rise to Power 69:Cleopatrais born inAlexandria, the second of five children to King Ptolemy XII and an unknown woman. ...
January - February:Feminist art students staged the provocative exhibit "Womanhouse" in an abandoned house in Los Angeles. March 22:The ERA passed the Senate and was sent to the states for ratification. March 22:Eisenstadt v. Bairdoverturned laws that restricted unmarried persons' access to cont...