Economic history involves the study of economies or economic phenomena rooted in the past. Economic history analysis is undertaken using a number of historical methods, statistical methods and require the application of economic theory to historical situations and institutions. Topics include financial and business history, which overlap with areas of social history such as demography and labor history. Many early books on economic history described businesses, economies or industries, with relatively less emphasis on econometrics or theoretical analyses.
Science is a systematic enterprise that builds knowledge through formulating testable hypothese and predictions about the physical universe. Its earliest roots of science can be traced to Ancient Egypt, India and Mesopotamia in around 3500 to 3000 BC. Scientific fields may be divided into: natural sciences, which examine natural phenomena including biological lifeforms, and social sciences, which analyze human behavior and societies. Both are empirical sciences. Disciplines that may be termed interdisciplinary applied sciences include engineering and medicine. Mathematics, which is formally classified as a science, exhibits similarities and differences to empirical sciences.
United States history began with the migrations of Indigenous people prior to 15,000 BC. Christopher Columbus's 1492 expedition enabled European colonization, with most colonies formed after 1600. By the 1770s, 13 British colonies held 2.5 million people along the Atlantic coast east of the Appalachians. The British government imposed new taxes after 1765 and would not agree to the colonists having a say in their determination. The American War of Independence, 1775–1783, ensued, resulting in independence, and another war was declared against Britain in 1812. The next 50 years saw the expansion of American states and territories through the west, however growth was curtailed by the costly American Civil War, which broke out in 1861 over the Confederate States' wish to continue the practice of slavery, and the Union's wish to preserve the union. By 1865 some 620,000 people died, making it the most costly in US history. Alaska was purchased from Russia in 1867. The next decades up to World War 1 saw large migrations from Europe and massive growth in the US economy. The US had a short but decisive influence on World War 1, suffered during the Great Depression, and had an even greater decisive influence on the outcome of World War 2. The US then engaged in a Cold War with its military and ideological adversary, the USSR, which disintegrated in 1991. Over the 20th century the US was not just a dynamo of technological advancement, but also contributed greatly to world growth.
Leopold Classic Library has the goal of making available to readers the classic books that have been out of print for decades. While these books may have occasional imperfections, we consider that only hand checking of every page ensures readable content without poor picture quality, blurred or missing text etc. That's why we: