Which event in Earth’s history most directly allowed life to exist on land?

Development has provided electrically for less money but what may be considered a cause of nuclear power

What was the impact of the concordat of worms?

After dinner with his brother, charles darwin looked through a book by thomas robert malthus, who believed that humanity, if unchecked, could double its population size in 25 years . why then , wasn't the earth overrun with humans at this point ? how does this relate to the stoning of the darwin's carriage?