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United States-Beginning of the Civil War
The Civil War started because of uncompromising differences between the free and slave states (or the confederacy and the union) over the power of the national government to prohibit slavery. When Abraham Lincoln was elected and promised to keep slavery out of the territories seven slave states seceded and formed a new nation, the Confederate States of America led by Jefferson Davis. -
US/ World- Gettysburg Adress
This was a very well-known speech that was delivered by Abraham Lincoln during The Civil War after The Confederacy is defeated by The Union at The Battle of Gettysburg. Lincoln gave the speech in Gettysburg, Pennsylvania.
Here is a Video better explaining this event, as well as showing Lincoln's actual speech -
Chemistry-UK-Law Of Octaves
J.A.R. Newlands' generalization that if chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements. One of the first detections of a periodic pattern and properties of elements. -
US/ World- President Lincoln's Assassination
President Abraham Lincoln was shot and killed by John Wilkes Booth while watching a play at Ford's theater in Washington DC. Booth escaped, and was tracked down and killed only hours later. Lincoln was taken to Peterson house, however did not make it though the night. -
United States- Andrew Johnson Impeachment
The House of Representatives voted eleven articles of impeachment against President Johnson, nine of which site Johnson's removal of secretary of war Edwin M. Stanton, a violation of the Tenure of Office Act. Congress disagreed with Johnson's reconstruction plan that was so lenient with the south that southern states retained slavery all but in name. The tenure of office act prevents the president from removing officials confirmed by the Senate without Senatorial approval. -
Chemistry-Russia-Mendeleev's Periodic Table
Dmitri Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a periodic way and arrange them so that groups of elements with similar properties fell into vertical columns in his table. Gaps were present in his table due to his method of arranging elements, but instead of seeing this as a problem Mendeleev thought it simply meant that the elements in the gaps hadn't been discovered yet. He was right. Our current table is based on his model. -
Chemistry- Discovery of the Electron
An Electron is a particle that is a constituent of all the matter we are surrounded by. It is a component that is found within all atoms along with neutrons. This discovery was made by JJ Thomson, an English Physicist, using the Cathode Ray Experiment. -
US/Cuba/Spain/Hawaii/Guam/ The Philippines- beginning of the Spanish American war
A "splendid little war",as said by Secretary of State John Hay, in which America decided to declare war on Spain after a combination of factors including: Yellow Journalism, the Delomé letter, And the explosion of the USS Maine. Spain was very reluctant to go to war with America so they agreed to conditions we had set in order to prevent war but by the time they had agreed Americans were so war hungry that war was declared anyhow. Ended in August 1898. -
Chemisty-UK- Plum Pudding Model
In Thompson's model, the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons negative charges, like negatively charged plums surrounded by positively charged plum pudding. -
US/ World- Great San Francisco Earthquake
This earthquake struck the coast of northern California at 5:12 am with an estimated moments magnitude of 7.8 and an extreme Mercalli intensity. It lasted for several days and as a result, fires broke out all of the city, endangering millions of people. -
Chemistry- Discovery of the Proton
The discovery of the proton was made by Ernest Rutherford, a man from England, when he did an experiment in which he discovered that the atom must have a concentrated positive center charge that contains most of the atom's mass. He suggested that the nucleus contained a particle with a positive charge (a proton). -
Chemistry-New Zealand-Rutherford's Gold foil experiment
Ernest Rutherford established the nuclear theory of the atom with his gold foil experiment.When he shot a beam of alpha particles at a sheet of gold foil,a few of the particles were deflected. He concluded that a tiny, dense nucleus was causing the deflections. This disproved Thompson's Plum Pudding model.
Excellent explanation of The Experiment and its Impact -
United States-Titanic Disaster
After four uneventful days on the Titanic's maiden voyage the great shift sideswiped on an iceberg despite six ice warnings on the trip from South Hampton to New York City. The ship sunk off of the coast of Newfoundland. -
Chemistry- Mosley/ Atomic Numbers
Henry Gwyn Jefferys Mosely, an English Physicist, discovered that the number of protons in the nucleus of an atom determines chemical properties of the element. These numbers of protons he talked about are called atomic numbers. -
Chemistry-Denmark-Bohr Atomic Model
The Bohr model (created by danish scientist Niels Bohr) of the atom was a radical departure from earlier classic descriptions, it it was the first model that incorperated quantum theory and was the predecessor of wholly quantum mechanical models. It describes the properties of atomic electrons in terms of a set of allowed possible values. Atoms absorb or IMIT radiation only when the electrons abruptly jump between allowed or stationary states . -
US/ World- World War 1
This was a global war that originated in Europe and spread throughout the rest of the world with countries called the Allies (mainly Britain, France, Russia and Italy) and the Central Powers (mainly Germany, Austria-Hungary,Bulgaria and the Ottoman Empire). One of the main causes of this war was the assassination of Archduke Franz Ferdinand. It was one of the largest wars in known history. It lasted until November 11,1918. -
Chemistry- Schrodinger Equation
This is the fundamental equation of Physics for describing quantum behavior. It plays the role of Newton’s laws and conservation of energy in classical mechanics. It predicts the future behavior of a dynamic system. It was formulated by Erwin Schrodinger, who was from Austria. -
US/ World- The Great Depression
This was a severe, world-wide economic depression that took place during the 1930's. It was the largest, longest, deepest, and most wide-spread depression of the 20th century and originated within the USA. Millions were out of work and were out on the streets with not enough money. -
Chemistry- Discovery of the Neutron
James Chadwick, an English physicist, discovered the Neutron while working on the project of finding evidence of Rutherford's tightly bound "proton-electron pair". He discovered that neutrons were elementary particles devoid of an electrical charge. -
Russia/ United States/Germany/Poland/Britain/France- beginning of World War II
The war began when Hitler invaded Poland. Britain and France responded by declaring war on Germany but took little action over the following months. In 1940 Germany launched its next initiative by attacking Denmark and Norway, followed shortly there after by attacks on Belgium, the Netherlands, and France. All of these nations were conquered rapidly. Germany later attacked Britain and finally lost to the British Airforce. The war ended September 2,1945.
