Age of Discovery

In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, comparable with the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.

Population decline, counterurbanisation, the collapse of centralised authority, invasions, and mass migrations of tribes, which had begun in Late antiquity (c. ~3rd–8th centuries) and into the Early Middle Ages (c. 5th–10th centuries). The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—once part of the Byzantine Empire—came under the rule of the Umayyad Caliphate, an Islamic empire, after conquest by Muhammad's successors. Although there were substantial changes in society and political structures, the break with classical antiquity was incomplete. The still-sizeable Byzantine Empire, Rome's direct continuation, survived in the Eastern Mediterranean and remained a major power. The empire's law code, the Corpus Juris Civilis or "Code of Justinian", was rediscovered in Northern Italy in the 11th century. In the West, most kingdoms incorporated the few extant Roman institutions. Monasteries were founded as campaigns to Christianise the remaining pagans across Europe continued. The Franks, under the Carolingian dynasty, briefly established the Carolingian Empire during the later 8th and early 9th centuries. It covered much of Western Europe but later succumbed to the pressures of internal civil wars combined with external invasions: Vikings from the north, Magyars from the east, and Saracens from the south.

The Age of Sail is a period in European history that lasted at the latest from the mid-16th (or mid-15th) to the mid-19th centuries, in which the dominance of sailing ships in global trade and warfare culminated, particularly marked by the introduction of naval artillery, and ultimately reached its highest extent at the advent of steam power. Enabled by the advances of the related age of navigation, it is identified as a distinctive element of the early modern period and the Age of Discovery.

The early modern period is a historical period, with divisions based primarily on the history of Europe and the broader concept of modernity. There is no exact date that marks the beginning or end of the period and its extent may vary depending on the area of history being studied. In general, the early modern period is considered to have started at the beginning of the 16th century, and is variably considered to have ended at the 18th or 19th century (around 1500 to 1700–1800). In a European context, it is defined as the period following the Middle Ages and preceding the advent of modernity, but there is no universal agreement on the dates of these boundaries. In the context of global history, the early modern period is often used even in contexts where there is no equivalent "medieval" period.

Various events and historical transitions have been proposed as the start of the early modern period, including the fall of Constantinople in 1453, the start of the Renaissance, the end of the Crusades, the Reformation in Germany giving rise to Protestantism, and the beginning of the Age of Discovery and with it the onset of the first wave of European colonization. Its end is often marked by the French Revolution, and sometimes also the American Revolution or Napoleon's rise to power, with the advent of the second wave modern colonization of New Imperialism.

An astrolabe (Ancient Greek: ἀστρολάβος, romanized: astrolábos, lit. 'star-taker'; Arabic: ٱلأَسْطُرلاب, romanized: al-Asṭurlāb; Persian: ستاره‌یاب, romanized: Setāreyāb) is an astronomical instrument dating to ancient times. It serves as a star chart and physical model of the visible half-dome of the sky. Its various functions also make it an elaborate inclinometer and an analog calculation device capable of working out several kinds of problems in astronomy. In its simplest form it is a metal disc with a pattern of wires, cutouts, and perforations that allows a user to calculate astronomical positions precisely. It is able to measure the altitude above the horizon of a celestial body, day or night; it can be used to identify stars or planets, to determine local latitude given local time (and vice versa), to survey, or to triangulate. It was used in classical antiquity, the Byzantine Empire, the Islamic Golden Age, the European Middle Ages and the Age of Discovery for all these purposes.

The astrolabe, which is a precursor to the sextant,is effective for determining latitude on land or calm seas. Although it is less reliable on the heaving deck of a ship in rough seas, the mariner's astrolabe was developed to solve that problem.

The modern era or the modern period is considered the current historical period of human history. It was originally applied to the history of Europe and Western history for events that came after the Classical antiquity and the Middle Ages, often from around the year 1500, like the Reformation in Germany giving rise to Protestantism. Since the 1990s, it has been more common among historians to refer to the period after the Middle Ages and up to the 19th century as the early modern period. The modern period is today more often used for events from the 19th century until today. The time from the end of World War II (1945) can also be described as being part of contemporary history. The common definition of the modern period today is often associated with events like the French Revolution, the Industrial Revolution, and the transition from nationalism toward the liberal international order.

The modern period has been a period of significant development in the fields of science, politics, warfare, and technology. It has also been an Age of Discovery and globalization. During this time, the European powers and later their colonies, strengthened their political, economic, and cultural colonization of the rest of the world. It also created a new modern lifestyle and has permanently changed the way people around the world live.

Habsburg Spain refers to Spain and the Hispanic Monarchy, also known as the Catholic Monarchy, in the period from 1516 to 1700 when it was ruled by kings from the House of Habsburg. In this period the Spanish Empire was at the zenith of its influence and power. During this period, Spain held many territories, including Pan-American continental holdings and the West Indies; European territories like the Low Countries, Italian territories, Portugal and parts of France; and the Philippines and other possessions in Southeast Asia. The period of Spanish history has also been referred to as the "Age of Expansion".

The Habsburg name was not always used by the family members, who often emphasized their more prestigious princely titles. The dynasty was long known as the "House of Austria". In some circumstances, the family members were identified by their birthplace. Thus, Charles V was known in his youth as Charles of Ghent. As king of Spain, he was known as Charles I of Spain and as emperor, Charles V (in French, Charles Quint). In Spain, the dynasty was known as the Casa de Austria, including illegitimate sons such as John of Austria and John Joseph of Austria. The arms displayed in their simplest form were those of Austria, which the Habsburgs had made their own, at times impaled with the arms of the Duchy of Burgundy (ancient), as seen on the arms of John of Austria. Calling this era "Habsburg", is, to some extent, a convenience for historians.

The earliest known world maps date to classical antiquity, the oldest examples of the 6th to 5th centuries BCE still based on the flat Earth paradigm. World maps assuming a spherical Earth first appear in the Hellenistic period. The developments of Greek geography during this time, notably by Eratosthenes and Posidonius culminated in the Roman era, with Ptolemy's world map (2nd century CE), which would remain authoritative throughout the Middle Ages. Since Ptolemy, knowledge of the approximate size of the Earth allowed cartographers to estimate the extent of their geographical knowledge, and to indicate parts of the planet known to exist but not yet explored as terra incognita.

With the Age of Discovery, during the 15th to 18th centuries, world maps became increasingly accurate; exploration of Antarctica, Australia, and the interior of Africa by western mapmakers was left to the 19th and early 20th century.

The East Indies (or simply the Indies) is a term used in historical narratives of the Age of Discovery. The Indies broadly referred to various lands in the East or the Eastern Hemisphere, particularly the islands and mainlands found in and around the Indian Ocean by Portuguese explorers, soon after the Cape Route was discovered. In a narrow sense, the term was used to refer to the Malay Archipelago, which today comprises the Philippine Archipelago, Indonesian Archipelago, Borneo, and New Guinea. Historically, the term was used in the Age of Discovery to refer to the coasts of the landmasses comprising the Indian subcontinent and the Indochinese Peninsula along with the Malay Archipelago.

The first wave of European colonization began with Spanish and Portuguese conquests and explorations, and primarily involved the European colonization of the Americas, though it also included the establishment of European colonies in India and in Maritime Southeast Asia. During this period, European interests in Africa primarily focused on the establishment of trading posts there, particularly for the African slave trade. The wave ended with the British annexation of the Kingdom of Kandy in 1815 and the founding of the colony of Singapore in 1819.

The beginning of the first wave of European colonization (and other exploratory ventures) is often synonymous with the European period called the Age of Discovery and altogether with the early modern period. At the end of the first wave a new wave of European colonization took shape and is known as the period of New Imperialism, which started in the late 19th-century and primarily focused on Africa and Asia, which is congruent with the period of classical modernity. Both periods are considered as the establishing periods of globalization and modernity.

Prince Henry of Portugal, Duke of Viseu (Portuguese: Infante Dom Henrique; 4 March 1394 – 13 November 1460), better known as Prince Henry the Navigator (Portuguese: Infante Dom Henrique, o Navegador), was a Portuguese prince and a central figure in the early days of the Portuguese Empire and in the 15th-century European maritime exploration. Through his administrative direction, he is regarded as the main initiator of what would be known as the Age of Discovery. Henry was the fourth child of King John I of Portugal, who founded the House of Aviz.

After procuring the new caravel ship, Henry was responsible for the early development of Portuguese exploration and maritime trade with other continents through the systematic exploration of Western Africa, the islands of the Atlantic Ocean, and the search for new routes. He encouraged his father to conquer Ceuta (1415), the Muslim port on the North African coast across the Straits of Gibraltar from the Iberian Peninsula. He learned of the opportunity offered by the Saharan trade routes that terminated there, and became fascinated with Africa in general; he was most intrigued by the Christian legend of Prester John and the expansion of Portuguese trade. He is regarded as the patron of Portuguese exploration. He is also considered to be one of the most responsible for developing the slave trade in Western Europe. The prince died on 13 November 1460 in Vila do Bispo, Algarve.