This philosophy belongs to Lao Tzu. The quote tells the importance of love to a human being.
<h3>Who is Lao Tzu?</h3>
This man was a contemporary Chinese philosopher that lived through the 6th century.
He is the author of the Tao Te Ching. He is known for most of his quotes and as the founder of Taoism.
Read more on Lao Tzu here: brainly.com/question/6440371
Firsthand accounts : eyewitness account, letter from a general to his troops, an interview of a war veteran
Secondhand accounts: television documentary, article
The most important event was obviously the American Civil War from 1861-1865. This led to the 14th Amendment which defined a citizen as "any person born or naturalized in the US." The 13th Amendment abolished slavery, and the 15th Amendment prohibits denying the right to vote to someone because of their race.
Other key events include the Louisiana Purchase, the Texas Revolution, The Spanish-American War, the War of 1812, the purchase of Alaska, the Mexican Cession, the Indian Wars, and the California Gold Rush.
Like I said, the right to vote was extended to all male citizens by the 15th Amendment. Women were not given the right to vote until the 19th Amendment was passed in 1920.
