Answer:
On the 30th of December which equates to 0.065 billion years ago
Explanation:
The cosmic calendar was made popular by a famous astronomer named Carl Sagan. His aim was to help people to better understand when a particular prehistoric event in the universe occurred when compared to another prehistoric event.
He achieved the aim by chronologically arranging the 13.8 billion years of the universe age into one year. According to such arrangement, the Big Bang occurred on the 1st of January (13.8 billion years ago) while Dinosaurs went into extinction on the 30th of December (0.065 billion years ago).
Following their extinction, the age of primates began on the 31st of December (Just 40 million years ago). You can see that Carl Sagan's visualization puts the beginning of primates (which men evolved from) immediately after the extinction of Dinosaurs and very far away from the Big Bang that signifies the creation of the universe.
The years of industrial expansions after the civil war Brought significant changes to American society. The country became increasingly urban, and cities grew not only in term of population but also in size,with skyscrapers pushing cities upward and transportation extending them outward. Part of urban population growth was fueled by an unprecedented mass immigration to the United States that continued unabated into the first two decades of the twentieth century. The promise that America held for these new immigrants contrasted sharply with the rise of legalized segregation of African‐Americans in the South after Reconstruction. Meanwhile, ongoing industrialization and urbanization left their mark on how people spent their daily lives and used their leisure time.
The concerns of the people working for the organizations vision
