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Beginning of The Civil War
The Civil War began on April 12th of 1861.It was between the Union and Confederate States of America. It began when Confederate forces bombed Fort Sumter for not evacuating Union Troops from the fort. -
Gettysburg Adress
The Gettysburg Adress was presented on November 19th of 1863. Abraham Lincoln wrote it for the dead soldiers and American people. It was written for a dedication ceremony for the dead soldiers of the Battle of Gettysburg. -
The Lincoln Assasination
Abraham Lincoln was shot on April 14th, 1865. He was assasinated by John Wilkes Booth. John was angry that the North had won the war. -
Law of Octaves
This law was created in 1865. It was proposed by a man named J.A.R Newlands. The law states that "if the chemical elements are arranged from increasing atomic weight, those with similar physical and chemical properties occur after each interval of 7" -
Andrew Jackson Impeached
Andrew Jackson was impeached on Febuary 24th, 1868. Andrew Jackson was impeached by the two houses of Congress. He was impeached because he had removed cabinet members without approval. -
Mendeleev's Periodic Table
This table was made in 1869. The creator was a man named Dmitri Mendeleev. In this table he arranged the known elements by atomic mass -
Discovery of the Electron
The electron was discovered in 1897. It was discovered by J.J Thompson. An electron is a subatomic particle with a negative electric charge. -
The beggining of the Spanish American War
The Spanish American War began on April 25th of 1898. Te Americans and Cuans were fighting against the Spanish. It began when the U.S.S. Maine was sunk. It was faught for Cuba's independence. -
Plum Pudding Model
The model was proposed in 1904. The creator of the Plum Pudding model was J.J Thomson. It proposed that atoms were comprised of negative electrons surrounded by a soup of positive energy. -
Great San Francisco Earthquake
The Earthquake struck San Francisco on April 18th, 1906. It happened to the inhabitants of San Francisco and surounding towns. It happened because San Francisco is near a geological fault line. -
Rutherford's Gold Foil Experiment
This experiment was first held in 1910. The idea for this experiment came from Ernest Rutherford. This experiment ended up disproving the plum pudding model and lead to the discovery of the nucleus. -
The Titanic Disaster
The Titanic sank on April 14th of 1912. The passengers and crew escaped or died on the ship. The ship began to sink when it crashed into an iceberg. -
Bohr's Planetary Model
This model was created in 1913. The creator was Niels Bohr. This model described atoms as having a positive nucleus surrounded by negative electrons. -
Mosely/Atomic Number
The atomic number system was created in 1913. Henry decided to arrange the elements by their atomic number. An elements atomic number is based on the positve charge of the atom. -
World War 1
World War 1 began on July 28th, 1914. It was between the Central Powers of Germany and the Ottomans, and the Allied powers of France, Britain, and the United States. -
Discovery of the Proton
The proton was first discovered in 1918. It was discovered by Ernest Rutherford. A proton is a sub atomic particle with a positive charge. -
Schrodinger Equation
This quation was formulated in 1925. It's creator was Erwin Schrodinger. It is a physics equation that deals with waves. -
Discovery of the Nuetron
The nuetron was discovered in 1932. The man who discovered it first was James Chadwick. A nuetron is a subatomic particle with a nuetral charge. -
World War 2
World War 2 began on September 1st of 1939. It was fought between the Axis powers of Germany, Italy, and Japan and the Allied nations of France, Britain, Russia, and the United States. It began when Germany invaded Poland.
