Age of DiscoveryThe Age of Discovery (c. 1418 – c. 1620), also known as the Age of Exploration, was part of the early modern period and overlapped with the Age of Sail. It was a period from approximately the 15th to the 17th century, during which seafarers from European countries explored, colonized, and conquered regions across the globe.
AstronomyAstronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation.
Recent African origin of modern humansTheory of early hominid migrationSuccessive dispersals (labeled in years before present) of Homo erectus greatest extent (yellow) Homo neanderthalensis greatest extent (ochre) Homo sapiens (red)Expansion of early modern humans from Africa through the Near EastThe recent African origin of modern humans or the "Out of Africa" theory (OOA) holds that present-day humans outside Africa descend mainly from a single expansion of anatomically modern humans (Homo sapiens) from Africa about 70,000–50,000 years ago.Discovery (observation)Discovery is the act of detecting something new, or something previously unrecognized as meaningful. In the sciences and other academic disciplines, discovery is the observation of new phenomena, new actions, or new events and involves providing new reasoning to explain the knowledge gathered through such observations, using knowledge previously acquired through abstract thought and from everyday experiences.
HumanSpecies of hominid in the genus HomoHumans (Homo sapiens, meaning 'thinking man' or 'wise man') are the most abundant and widespread species of primates, characterized by bipedalism, minimal body hair, and large, complex brains enabling the development of advanced technology, culture, and language.
Ancient EgyptCradle of civilization in North AfricaAncient Egypt was a cradle of civilization concentrated along the lower reaches of the Nile River in the eastern part of North Africa. It emerged from prehistoric Egypt around 3150 BC (according to conventional Egyptian chronology), when Upper and Lower Egypt were united by Menes, who is believed by the majority of Egyptologists to have been the same person as Narmer.
PtolemyGreco-Roman astronomer and geographer (c. 100–170)Claudius Ptolemy (; Ancient Greek: Πτολεμαῖος, Ptolemaios; Latin: Claudius Ptolemaeus; c. 100 – 160s/170s AD), better known mononymously as Ptolemy, was a Greco-Roman who wrote about a dozen scientific treatises, three of which were important to later Byzantine, Islamic, and Western European science.
LearningProcess of acquiring new knowledgeAmerican students learning how to make and roll sushiLearning is the process of acquiring new understanding, knowledge, behavior, skills, values, attitudes, and preferences. The ability to learn is possessed by humans, other animals, and some machines. There is also evidence for some kind of learning in certain plants.
Animal locomotionSelf-propulsion by an animalA beetle larva in rectilinear locomotionIn ethology, animal locomotion is any of a variety of methods that animals use to move from one place to another. Some modes of locomotion are (initially) self-propelled, e.g., running, swimming, jumping, flying, hopping, soaring and gliding.
OrganismAn organism is any living thing that functions as an individual. Such a definition raises more problems than it solves, not least because the concept of an individual is also difficult. Several criteria, few of which are widely accepted, have been proposed to define what constitutes an organism. Among the most common is that an organism has autonomous reproduction, growth, and metabolism. This would exclude viruses, even though they evolve like organisms.
EusocialityEusociality (Greekεὖeu 'good' or 'true' and social) is the highest level of organization of sociality. It is defined by the following characteristics: cooperative brood care (including care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor into reproductive and non-reproductive groups. The division of labor creates specialized behavioral groups within an animal society, sometimes called castes.
Peopling of the AmericasPrehistoric migration from Asia to the AmericasMap of early human migrations based on the Out of Africa theory; figures are in thousands of years ago (kya).It is believed that the peopling of the Americas began when Paleolithichunter-gatherers (Paleo-Indians) entered North America from the North AsianMammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the Last Glacial Maximum (26,000 to 19,000 years ago).
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