According to the history one-year calendar model based on the big bang theory Modern humans first appeared events happened on December 31st.
The big bang is how astronomers give an explanation for the manner the universe commenced. It is the concept that the universe commenced as only a unmarried factor, then multiplied and stretched to develop as big as it's miles proper now—and it's miles nonetheless stretching!
Around 13. 7 billion years ago, the entirety withinside the complete universe became condensed in an infinitesimally small singularity, a factor of countless denseness and heat. Suddenly, an explosive enlargement commenced, ballooning our universe outwards quicker than the velocity of light.
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During and after WWI, America experienced rapid growth due to the fact that pretty much the rest of the western civilization was demolished. American businesses were selling to Europe, and obviously earned a lot of profit. There was a lot of opportunity, and people wanted to spend their extra money on fun things. Advertisers and Marketers capitalized on that, and started a shift into more consumeristic thinking. With the advent of electricity, tons of home appliances were created and marketed, emphasizing the "buy now and pay later" approach. With all of the kitchen appliances, the era of domesticity ended, and women were free to go do other things such as have jobs or pursue fun activities.
The economy thrived, money was created out of nothing (compound interest, etc), which lead to a bubble and eventual collapse in 1929.
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