Although it originated in the United States, the Great Depression caused drastic declines in output, severe unemployment, and acute deflation in almost every country of the world.

Fireside Chats. The New Deal. The Works Progress Administration (WPA) Banks and the Stock Market Crash.

Examples of Primary Sources

• archives and manuscript material.
• photographs, audio recordings, video recordings, films.
• journals, letters and diaries.
• speeches.
• scrapbooks.
• published books, newspapers and magazine clippings published at the time.
• government publications.
• oral histories.

Primary sources are original documents created or experienced contemporaneously with the event being researched. Primary sources enable researchers to get as close as possible to what actually happened during an historical event or time period.

Primary sources help students develop knowledge, skills, and analytical abilities. When dealing directly with primary sources, students engage in asking questions, thinking critically, making intelligent inferences, and developing reasoned explanations and interpretations of events and issues in the past and present.

A primary source gives you direct access to the subject of your research. Secondary sources provide second-hand information and commentary from other researchers. Examples include journal articles, reviews, and academic books. A secondary source describes, interprets, or synthesizes primary sources.

Published materials can be viewed as primary resources if they come from the time period that is being discussed, and were written or produced by someone with firsthand experience of the event. Often primary sources reflect the individual viewpoint of a participant or observer.

The full database record for an item usually includes an abstract or summary–sometimes prepared by the journal or database, but often written by the author(s) themselves. This will usually give a clear indication of whether the article is a primary study.

Primary sources help students relate in a personal way to events of the past and promote a deeper understanding of history as a series of human events. Because primary sources are incomplete snippets of history, each one represents a mystery that students can only explore further by finding new pieces of evidence.

Parts of the Bible are primary sources of information as they purport to be written by the authors themselves. Other portions of the Bible are recordings of the memories of others who related in the information to the author and are thus not primary sources.

Examples of a primary source are: Original documents such as diaries, speeches, manuscripts, letters, interviews, records, eyewitness accounts, autobiographies. Empirical scholarly works such as research articles, clinical reports, case studies, dissertations.

Photographs are a very common type of primary source.

Secondary sources were created by someone who did not experience first-hand or participate in the events or conditions you’re researching. For a historical research project, secondary sources are generally scholarly books and articles. A secondary source interprets and analyzes primary sources.

Secondary sources are works that analyze, assess or interpret an historical event, era, or phenomenon, generally utilizing primary sources to do so. Secondary sources often offer a review or a critique. Secondary sources can include books, journal articles, speeches, reviews, research reports, and more.

For example, a photograph or video of an event is a primary source. Data from an experiment is a primary source. Secondary sources are one step removed from that. Secondary sources are based on or about the primary sources.

In the strictest definition, primary sources are usually considered to be items like personal letters, diaries, records or other documents created during the period under study. But primary sources can also include photographs, jewelry, works of art, architecture, literature, music, clothing, and other artifacts.

What comes after primary, secondary, tertiary? The sequence continues with quaternary, quinary, senary, septenary, octonary, nonary, and denary, although most of these terms are rarely used.

To correctly pronounce tertiary, say “TER-she-err-ee.” If you are the third child born in your family, don’t be tempted to call yourself the “tertiary child.” This means you are less important that your two older siblings.

There are three different types of colors: primary, secondary, and tertiary colors. The primary colors are red, yellow, and blue. The secondary colors are green, orange, and purple. And the tertiary colors are yellow-orange, red-orange, red-purple, blue-purple, blue-green, and yellow-green.

The Modern Primary Colors are Magenta, Yellow, and Cyan. Red and Blue are Intermediate Colors. Orange, Green, and Purple are secondary Colors.

Primary Yellow, Primary Red and Primary Blue are considered the root of every other color. They are colors that can’t be created by a mixture. The Secondary colors are Orange, Purple and Green. They are the ‘children’ of each pair of Primary colors.

Colours which cannot be produced by mixing other colours are called primary colours. It is not found possible to produce either red, blue or green colours by mixing two other colours. For this reason red, green and blue are called primary colours. A secondary colour can be produced by mixing other colours.

Color Basics

• Three Primary Colors (Ps): Red, Yellow, Blue.
• Three Secondary Colors (S’): Orange, Green, Violet.
• Six Tertiary Colors (Ts): Red-Orange, Yellow-Orange, Yellow-Green, Blue-Green, Blue-Violet, Red-Violet, which are formed by mixing a primary with a secondary.

Green, orange and purple (violet) are secondary colors. Each secondary color is placed in a range between two primary colors. A mixture of blue and yellow forms green, red and yellow forms orange, while blue and red mix into purple (violet).