biology

Timeline of environmental history

Timeline of environmental history is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Timeline of environmental history rather than just read about it. In short: This timeline lists events in the external environment that have influenced events in human history. This timeline is for use with the article on environmental determinism.

Key takeaways

Timeline of environmental history belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Timeline of environmental history to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Timeline of environmental history from memory before moving on to harder problems.

Reference excerpt

This timeline lists events in the external environment that have influenced events in human history. This timeline is for use with the article on environmental determinism. For the history of humanity's influence on the environment, and humanity's perspective on this influence, see timeline of history of environmentalism. See List of periods and events in climate history for a timeline list focused on climate.

Pre-Holocene (1.5 Ma) The time from roughly 15,000 to 5,000 BCE was a time of transition, and swift and extensive environmental change, as the planet was moving from an Ice age, towards an interstadial (warm period). Sea levels rose dramatically (and are continuing to do so), land that was depressed by glaciers began lifting up again, forests and deserts expanded, and the climate gradually became more modern. In the process of warming up, the planet saw several "cold snaps" and "warm snaps", such as the Older Dryas and the Holocene climatic optimum, as well as heavier precipitation. In addition, the Pleistocene megafauna became extinct due to environmental and evolutionary pressures from the changing climate. This marked the end of the Quaternary extinction event, which was continued into the modern era by humans. The time around 11,700 years ago (9,700 BC) is widely considered to be the end of the old age (Pleistocene, Paleolithic, Stone Age, Wisconsin Ice Age), and the beginning of the modern world as we know it.

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Worked examples

Example 1 — a first encounter with Timeline of environmental history

Start with the simplest possible case. Write down what Timeline of environmental history claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Timeline of environmental history before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Timeline of environmental history ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Timeline of environmental history

In research: Timeline of environmental history appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Timeline of environmental history in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Timeline of environmental history is common in secondary-school and first-year university syllabi. It links to neighbouring topics Environmental history, Environmental timelines, Evolution-related timelines, so understanding it makes those chapters shorter.
In everyday life: Look for Timeline of environmental history outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Timeline of environmental history in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Timeline of environmental history means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Timeline of environmental history out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Timeline of environmental history in simple terms?

This timeline lists events in the external environment that have influenced events in human history. This timeline is for use with the article on environmental determinism.

Why does Timeline of environmental history matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Timeline of environmental history?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Timeline of environmental history.