Albert Einstein is a theoretical physicist who was born in Germany in the late 1800’s. He made a significant print in the history of science of the modern era of man. He is extensively recognized for being one of the most prominent physicists of all time. Albert Einstein is famous for developing the theory of relativity. He also had great and valuable contributions to developing a theory of quantum mechanics. In the year of 1921, he won the prestigious Nobel Prize award in the field of physics for his discovery of the photoelectric effect. He is best known for his development of the equation E=mc2. . This formula states that mass and energy are comprised of the same things, and are only different in form. His life’s work aided to expand upon the theories that had been put forth by Sir Isaac Newton. Albert Einstein was born in Germany at Ulm in Wurttemberg in 1979. His parents were both secular Jews, and both middle-class. His mother, named Pauline Kock, operated the household. He had one sister, Maria. Maria went by the name Maja, and was born two years after Albert. His Father, Hermann Einstein, was both an engineer and a salesman. In the second year of his life, the Einstein family moved to Munich, where Hermann and Einstein’s Uncle Jakob founded a company that manufactured various electrical apparati. From the age of five, Albert attended a catholic elementary school in Munich. He attended for three years. Once he turned eight years of age, he was transferred to the Luitpold Gymnasium, which is currently known as Albert-Einstein Gymnasium, where he secured his primary and secondary level education. Einstein excelled in the fields of Math and Physics from a very young age, showing obvious advancement which placed him years ahead of his peers. At the young age of 12, in just one summer, Einstein taught himself algebra and Euclidean geometry. During that same year, he also established his own evidence of the Pythagorean theorem which is a feat on its own. A written testament of Max Talmud, a family tutor, claimed that the 12-year-old prodigy was able to learn a whole geometry book in a short period of time. Einstein continued teaching himself, at the same age, calculus, and mastered integral and differential calculus two brief years later. During these years, at the age of 13, Einstein, while mastering his knowledge of Calculus, philosophy piqued his interest. Kant became his favored philosopher after being introduced to his work, Critique of Pure Reason. Einstein’s father and uncle were forced to close their manufacturing operation due to financial struggle only a few years after the had opened their joint enterprise. This came about because the company lost the bid to supply their electrical products to the City of Munich. Due to this unfortunate demise and subsequent search for an alternative business, the Einstein family moved to Milan, Italy. After only a few months, they relocated to Pavia. At this time, Einstein was 15 years old. He stayed in Munich to complete his studies while his family continued to move. At the adolescent age of 16 Einstein completed the entrance exam at the Swiss Federal Polytechnic School in Zurich. Though he did not meet the requisite score for the common part of the test, his mental prowess showed outstanding scores for both Math and Physics. On the recommendation of the school, he then attended the Argovian Cantonal School located in Aarau Switzerland. He resided with the Winteler family, and soon fell in love with the family’s daughter, Marie. Maja, Einstein’s sister, later married the Winteler’s son, Paul. A year after taking his entrance exam, Albert enrolled at the Federal Polytechnic school to complete a four-year physics and mathematics teaching program. At that time, Marie moved to Olsberg for a teaching post. In the class Einstein was enrolled in, he met his future wife, Mileva Maric, a young woman of Serbian heritage. Mileva was the only woman in the 6-member class. Over the next couple of years, the friendship between the two developed, and eventually became a romantic love interest. Einstein was eventually able to successfully complete the exam in mathematics and physics and was granted a teaching diploma. The following year, Albert obtained Swiss citizenship. It was in this same year that he encountered one of the biggest predicaments of his life. As a result of his studying in advance, Albert usually cut classes. This is the same reason he developed an animosity toward some of the professors, in particular toward Heinrich Weber. Because of Einstein’s behavior, Weber turned down Albert’s request for a letter of recommendation. This resulted in him being turned down for every academic endeavor that he applied to. As Einstein’s relationship with Maric continued to advance, his parents gre incresaingly opposed to their relationship. Einstein’s mother particularly objected to Maric’s Serbian origin. Despite the opposition of Einstein’s parents to their relationship, in January of 1902, he and Maric bore a child Lieserl. There is little to no information known about their offspring and it was believed that Lieserl perished from scarlet fever. 1902 was the year Einstein felt that he was at his lowest. He was unable to marry his love, Maric, or support a family as he didn’t have an occupation, and his father’s business was in shambles and bankrupt. This situation called for desperation in Einstein's, resulting in him exploring lowly occupations like tutoring children - which was not a successful venture. In the following year, he was able to secure a position in the Swiss Patent Office in Bern after his father and Marcel Grossman were able to recommend him. It was the same year that Einstein’s father died, and just before he passed away, he gave his blessing for him to marry Maric. With a steady flow of income, Einstein determined it was time to marry Maric. They had 2 children, namely Hans Albert, and Eduard, both born in Bern. Einstein was fast in analyzing the patents that he evaluated, giving him time to contemplate the vision he has always had since he was 16: what would happen if one raced alongside a light beam? During his year of education at the Polytechnic school, he became familiar with Maxwell’s formula, which depicts the properties of light, and discovered that the speed of a light beam stays the same regardless of the rate of speed of the movement. Einstein realized that this is a complete contradiction to Newton’s Theory which led him to generate the principle of relativity. In 1905, often referred to as Einstein’s miracle year, he publicized four papers that would later alter the course of modern-day physics, beyond his wildest imagination. Other scientists had contributed to the Theory of Special Relativity, but it was Albert Einstein who assembled the theory altogether and understood that it was a universal law of nature. Albert Einstein’s publication of papers that year was not quickly entertained by the physics community. This changed when interest of Max Planck, the founder of quantum theory, was piqued by Einstein’s papers. Soon after, resulting from Planck’s acclamatory comments, Einstein was soon invited to lecture in the international community such as the Solvay Conference, and his fame skyrocketed in the academic world. As his fame rose rapidly, consequent to this, Albert received a series of offered posts in prestigious institutions like the University of Zurich, the University of Prague, and the University of Berlin where he then assumed the post of Director. As his fame rose, his marrital life was moving in the opposite direction. He was preoccupied with being on the road and fulfilling his international duties. The married couple would then have frequent arguments about their children and their finances. Persuaded that the marriage was about to fall, Einstein had an affair with a cousin, Elsa Lowenthal whom he then later married. In 1915, Einstein was able to complete the general theory of relativity, which is considered to be his grand masterpiece. In the present day, physicists refer to the action from which the formulas are derived as Einstein-Hilbert action, though the theory is solely attributed to Albert Einstein. His theory was thought to be completely accurate because of its mathematical magnificence. It also anticipated a quantifiable deflection of the light beam around the biggest star in the solar system, the sun. The momentum of Einstein’s work, discovery, and fame was halted in the eruption of The Great War, known to be the first of the two World Wars. As he lived a pacifist lifestyle, Einstein was one of the four academics in the country of Germany to sign the manifesto showing opposition to the country entering this war. Amidst the turmoil brought about by the war, radical students took control of the University of Berlin and held academic personnel as hostages. Due to the high regard for Einstein, by the students and faculty members, he was able to resolve the crisis with the help of Max Born. At the war's conclusion, two expeditions were completed to test Einstein’s hypothesis of selected starlight near the sun. One was sent to the Island of Principe, on the coast of west Africa and the other one was to Sobral, located in the northern region of Brazil to witness the solar eclipse on May 29, 1919. The result of these two expeditions was soon later announced in a meeting of the royal society and the Royal Astronomical science held in London. The headline of the popular magazine, The Times of London, which covered the results, had a massive impact on the academic stage, which made Albert Einstein a world-renowned physicist – considered to be the successor of Sir Isaac Newton. This boosted, yet again, Einstein’s fame that resulted in the outpouring of invitations to speak on the international stage about his feats and discoveries. The first of his several world tours visited the countries of the United States of America, England, Japan, and France. In every place that he went to, the crowds were welcoming, with numbers even reaching into the thousands. During his trip to Japan, Einstein received an announcement that he had won the Nobel Prize for Physics. However, it was not for his Relativity Theories, but his photoelectric effect studies. In his acceptance speech for the Nobel Prize award, Einstein focused his message on his theory of relativity instead of the expected topic and his actual award of the photoelectric effect. This was somewhat startling to the audience. Einstein added another to his long list of achievements by releasing “the new science of cosmology.” This mathematical equation hypothesized that the universe is not static but dynamic – either expanding or contracting. This was a complete contradiction to what most believed, which was that the universe was stationary. In 1929, he met with Edwin Hubble, an American astronomer, and found out that the universe was actually expanding, which completely agreed with Einstein’s previous work. During the same visit to the state of California, Albert Einstein was also asked to appear alongside comic actor, Charlie Chaplin, during the debut of the Hollywood film the City Lights. In this same period, Albert Einstein started connecting with other influential thinkers. He connected with Sigmund Freud. Albert also made clear his religious point of view. He stated that he believed that there is a being who was the ultimate provider of law. He believed not in the god that interceded with human affairs but in the god of harmony and beauty. In the later years of the 1930’s, Einsteins’ historical work and achievements, including his famous equation of E=mc2, assisted in the formation of the basis and development of the atomic bomb. At the urging of Leo Szilard, a Hungarian physicist, Albert Einstein wrote to US president Franklin Roosevelt to advise him in approving the funding for the study and development of uranium before Germany could get the upper hand. Einstein was able to secure citizenship from the US but retained his Swiss citizenship status. In summary of all his achievements, his legacy is that of brilliant breakthroughs in physics and knowledge of the known universe. His theories were revolutionary: the theory of special relativity, theory of general relativity, photoelectric effect, and his last incomplete study of a unified theory. In his theory of special relativity, Einstein showed that all the observed laws, physical in nature, were identical to all observers, with the exception of the rule that their speed is not accelerating. The theory posited that the speed of a light beam in vacuum space will always be traveling at the same rate of speed, regardless of the speed of the observer traveling. This discovery led to the knowledge that space and time are interconnected to what we now refer to as space-time. In essence, an event occurring that is observed by an observer can also be seen at a different time by another observer. Regarding the theory of general relativity, this was a reformulation of the certified law of gravity. In 1600, Sir Isaac Newton articulated three laws of motion, with one of them, laying out how gravity interacts and behaves between two bodies. The force acting upon them depends on how big the objects are, and the distance between the two bodies. Albert Einstein established that when contemplating space-time, an object of great size can cause distortion in space and time. Simply put, an analogy used to explain this was putting a heavy ball, say a bowling ball, in a trampoline and it causes the depression in the trampoline that is described to be the distortion. The theory of general relativity aced the major test in 2019 in experimentation that involved a gigantic black hole located at the center of the Milky way. His third famous achievement was the photoelectric effect, which led him to win the Nobel Prize award. In his study, he proposed that light should be considered as a stream of particles, referred to as photons, instead of just being a single wave, as the idea was commonly thought of at that time. In the last year of his life, Einstein continued his academic quest for a unified field theory. He was able to publish an article by 1950, but it remained unfinished after he died from an aortic aneurysm that happened 5 years later. In the years following his death, Albert Einstein’s fame, stature, and reputation in the world of physics have only developed further, as physicists began to untangle the mystery of the so-called “Strong force” which was considered to be the missing puzzle piece of his incomplete unified field theory. And space satellites further validated his principles in cosmology. Albert Einstein is deemed by many to be the greatest scientist of the 20th century. His life work and discoveries revolutionized the scientific community with his new theories about space, time, mass, motions, and gravity.