The American Declaration of Independence was adopted in 1776, establishing the United States as a separate nation. This event is a pivotal moment in American history that led to the formation of a new country.

World War II began in 1939 and involved nations from around the globe. This conflict reshaped international relations and had a lasting impact on world history.

Christopher Columbus embarked on his voyage in 1492, which led to European awareness of the American continents. This exploration event had a transformative effect on global history.

The Fall of the Berlin Wall in 1989 signified the end of decades of division in Europe. It was a peaceful revolution that symbolized the broader collapse of Cold War barriers.

The Women's Suffrage Movement led to the ratification of the 19th Amendment in 1920, which granted women the right to vote. This was a transformative step toward achieving equality in the United States.

The Storming of the Bastille in 1789 is widely recognized as the event that triggered the French Revolution. It symbolized the uprising of the people against oppressive rule and marked the beginning of monumental social and political change in France.

The American Civil War commenced in 1861, setting the stage for a conflict that would shape the nation's future. Its onset marked a critical turning point in U.S. history with long-lasting political and social effects.

The Russian Revolution took place in 1917, leading to significant political upheaval and the rise of a new regime in Russia. This event is a defining moment in global history, influencing many subsequent political movements and conflicts.

The assassination of Archduke Franz Ferdinand in 1914 set off a chain of events that led to the outbreak of World War I. This incident is widely regarded as the immediate catalyst that plunged Europe into a devastating conflict.

The invention of the steam engine was a revolutionary breakthrough that powered the Industrial Revolution. This innovation dramatically increased production capabilities and transformed economies by introducing mechanized manufacturing.

The Renaissance marked a period of rebirth in art, science, and culture, bridging medieval and modern Europe. It emphasized humanism and innovation, which laid the groundwork for subsequent developments in the modern era.

The invention of the printing press around 1440 by Gutenberg transformed the dissemination of knowledge in Europe. It made books more accessible and spurred an era of increased literacy and cultural exchange.

The devastation of World War II highlighted the need for an international organization to promote peace and cooperation. As a result, the United Nations was established in 1945 to help prevent future conflicts and foster global dialogue.

Brown v. Board of Education overturned the doctrine of 'separate but equal' by declaring that segregated schools are inherently unequal. This decision was a monumental step forward in the civil rights movement and helped set the stage for further desegregation.

The Spanish-American War took place in 1898 and fits chronologically between the American Civil War and World War I. This conflict marked a period of American expansion and emerging global influence.

The Louisiana Purchase, completed in 1803, was a critical moment in U.S. history that significantly expanded national territory. This event fits squarely between the era of American independence and the onset of the Civil War, highlighting a period of growth and exploration.

The Battle of Stalingrad was a decisive conflict on the Eastern Front that drastically shifted the momentum of World War II. Its outcome weakened German forces and set the stage for the eventual Allied victory in Europe.

The invention of the steam locomotive was a groundbreaking achievement during the Industrial Revolution that transformed transportation. It fits chronologically between the era of exploration and the outbreak of World War I, marking a significant technological advancement.

Columbus' voyage (1492) is the earliest event, followed by the American Civil War (1861). The Russian Revolution in 1917 is the third event, coming before the Fall of the Berlin Wall in 1989, making it the correct placement in the sequence.

The invention of the steam engine was a transformative event during the Industrial Revolution, bridging early mechanical innovations with modern technological advances. It serves as a key milestone between the era of the printing press and the onset of the Digital Revolution.