# data[].attributes.attachment_caption
The Gold Rush was the discovery of golden nuggets in the Sacramento Valley in 1848.

# data[].attributes.attachment_caption
Hundreds of thousands of people flocked to California to make their fortunes in the Gold Rush, but almost none of them were woman. 

# data[].attributes.attachment_caption
The social and political climate of China in the mid-1800s was that of an empire in decline.

# data[].attributes.attachment_caption
 At the peak of gold rush immigration in 1852, Chinese immigrants accounted for nearly 30% of all immigrants.

# data[].attributes.attachment_caption
Chinese men also were willing to work at tasks that American men found distasteful or considered "women's work," such as housekeeping and laundry.

# data[].attributes.attachment_caption
The First Transcontinental Railroad was built crossing the western half of America and it was pieced together between 1863 and 1869.

# data[].attributes.attachment_caption
The transcontinental transportation network revolutionized the American economy because the transport of goods was made much faster, cheaper and more flexible.

# data[].attributes.attachment_caption
The American Civil War was fought between the United States of America and Confederate States of America, a collection of southern states that left the Union. 

# data[].attributes.attachment_caption
The Reconstrution tried to solve the problem from the readmission to the Union of the 11 states that had seceded at or before the outbreak of war.

# data[].attributes.attachment_caption
The Emancipation Proclamation in 1863 freed American in rebel states. 

# data[].attributes.attachment_caption
During the first ten years of the twentieth century, the South lost 170,000 black people. 

# data[].attributes.attachment_caption
World War I, began in 1914 after the assassination of Archduke Franz Ferdinand of Austria. His murder catapulted into a war across Europe that lasted until 1918

# data[].attributes.attachment_caption
Thanks to new military technologies and the horrors of trench warfare, World War I saw unprecedented levels of carnage and destruction. 