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Khan Academy provides various free introductory art history video lessons. Topics include prehistoric art, ancient mediterranean art (Egypt, Greece, Rome and others), medieval...

This online course gives a free introduction to digital currencies such as Bitcoin. It is also the first course of an online master's program in digital currencies from the...

These online lessons explain the basics of spine and back anatomy. In addition to the free video lessons, further (paid) trainings are available.

Free Russian language app with many short tests to learn "on the go". (Not a video course.)

These online lessons explain the basics of cross sections in anatomy. In addition to the free video lessons, further (paid) trainings are available.

This online course teaches intermediate techniques to transform table data in SQL.

This online course gives an introduction to artificial intelligence and deep learning for programmers.

Khan Academy provides various free introductory video lessons on the history of the United States.

Die Online-Kurse der KhanAcademy geben eine erste Einführung in die Programmierung für Anfänger. Enthalten sind die Sprachen JavaScript, HTML, CSS und SQL.

Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

Free Swedish language app with many short tests to learn "on the go". (Not a video course.)

These online lessons explain the basics of neuroanatomy. In addition to the free video lessons, further (paid) trainings are available.

This online course gives an introduction to jQuery (a JavaScript library).

These online lessons explain the basics of lower extremity anatomy. In addition to the free video lessons, further (paid) trainings are available.

Khan Academy provides various free introductory computer science video lessons. Topics include algorithms, cryptography, information theory, computer hardware and software,...

Khan Academy provides various free introductory programming video lessons. Topics include JavaScript, HTML and CSS, SQL, and more.

This online course includes various free introductory history video lessons. Topics include:The beginnings and the neolithic revolution; Ancient civilizations in...

Khan Academy provides various free introductory macroeconomics video lessons. Topics include national income and the GDP, inflation, demand and supply, business cycles, the...

Free Esperanto language app with many short tests to learn "on the go". (Not a video course.)

Free Romanian language app with many short tests to learn "on the go". (Not a video course.)