Use primary and secondary sources to examine an event from multiple perspectives and defend a position

Learning goal: Distinguish primary sources from secondary sources, use both to examine one event from multiple perspectives, and present and defend a position with evidence that a critic could check.

What a primary source is, and what it is not. A primary source is evidence created during the period being studied, or by a person who took part in or witnessed the events. Letters, diaries, court testimony, laws, newspaper reports written at the time, account books, maps, engravings, buildings and tools all qualify. A secondary source is an account that interprets or summarizes events from evidence rather than witnessing them; it is usually written later by someone who did not take part and is built from primary sources and from other secondary work: a textbook chapter, a historian's book, an encyclopedia entry, a museum label. The distinction is about the source's relationship to the event, not about its reliability. A primary source can be biased, mistaken or deliberately misleading; a secondary source can be careful and well documented. The test is always "how does this source know what it claims?"

The same document can be primary for one question and secondary for another. A history textbook printed in 1890 is a secondary source about the American Revolution, but it is a primary source about how Americans in 1890 chose to remember the Revolution. When you record a source, write down the question you are asking of it, and then decide which kind it is for that question.

Why one source is never enough. Every source has a perspective: the position from which its creator saw events, shaped by that person's role, interests, audience and purpose. A perspective is not automatically a lie, but it decides what a source notices, what it leaves out and what words it chooses. A merchant, an enslaved worker, a British officer, a Shawnee leader and a Boston printer could all describe the same year of the 1770s and disagree about what mattered. Examining events from multiple perspectives means deliberately collecting sources from people in different positions, and asking what each could and could not have known.

A fully worked model: the Boston Massacre, 5 March 1770. On that evening a crowd in Boston confronted a small detachment of British soldiers guarding the customs house. The soldiers fired, and five colonists died, among them Crispus Attucks, a sailor of African and American Indian descent. Consider four sources: three primary and one secondary.

First, an engraving published a few weeks later by the Boston silversmith Paul Revere shows soldiers in a neat line firing on command into an orderly, unarmed crowd. It is a primary source: made in Boston within weeks of the event. Its perspective is that of Patriot organizers who wanted to turn the event into a rallying cause. It circulated widely, and that circulation is a fact about 1770. But it was not drawn from the spot, and its tidy composition is itself a claim about what happened, not neutral evidence.

Second, the deposition of Captain Thomas Preston, the officer in charge, argued that the crowd threw ice and clubs and that he never gave an order to fire. This is also a primary source, made by a participant, from the perspective of a man on trial for his life.

Third, the trial records from the autumn of 1770 contain testimony from many witnesses. John Adams, later the second president, defended the soldiers. The jury acquitted Preston; in a separate trial six soldiers were acquitted and two were convicted of the lesser charge of manslaughter. These outcomes are facts recorded in the court record. They do not settle who threw what first. That the jury acquitted the officer and convicted no one of murder is a fact; that the jurors therefore rejected the engraving's picture of a deliberate massacre on command is an inference from the verdicts, reasonable but to be tested against the trial testimony.

Fourth, a secondary source. The Massachusetts Historical Society's online introduction to the Boston Massacre, an account written from the documents in its collection, reports that "Tories and patriots immediately blame each other for the confrontation, and both sides begin collecting depositions to support their points of view," says that Revere "markets an engraving that vividly depicts a bloody massacre," and calls Preston's acquittal "a surprise verdict." It is secondary because it interprets the event from documents rather than witnessing it. Set beside the three primary sources, it adds what none of them gives on its own: it explains why they disagree (each side was deliberately building a record, and the Tory depositions were sent to England), and it places the verdict against what Boston expected. It also has limits: it is a short summary, and "surprise" is its authors' judgment, which the trial records would have to support. Now watch how a position is built from both kinds. A weak position says "the engraving proves the soldiers murdered peaceful colonists." It uses one source and ignores its purpose. A defensible position says: "The engraving shows how Patriot leaders wanted the event understood, and its wide circulation helped turn a street confrontation into a political cause; the trial testimony shows that what actually happened was confused, and the verdicts suggest that even a Boston jury found the soldiers' account partly credible (an inference from the outcome, not a record of the jurors' reasoning); the Historical Society's account, which calls the acquittal a surprise and describes both sides gathering depositions, supports that reading without proving it." That position cites primary and secondary sources, explains each source's perspective and predicts what evidence would change the writer's mind.

Corroboration and its limits. Two sources corroborate each other when they agree and did not copy from each other. Twenty websites repeating one museum label are one source, not twenty. When independent sources agree on a detail, your confidence rises; when they disagree, you must explain the disagreement rather than choose the one you like. Sometimes the honest conclusion is that the evidence cannot settle the question.

Presenting and defending a position. A position is a claim about the past that you are prepared to support and to revise. Defend it in four moves: state the claim in one sentence; give the evidence, naming each source and its kind; explain how the evidence supports the claim, including what the sources' perspectives add or subtract; and answer the strongest objection you can find. The last step is what turns a claim into a defended position: a claim that has faced its strongest objection is one a critic can test. If you cannot imagine a source that would count against your claim, the claim is probably too vague to be tested.

The misconception to avoid. Students often assume that "primary" means "true" and "secondary" means "just someone's opinion." The reverse mistake is also common: treating a polished secondary account as more trustworthy than the messy evidence behind it. Both errors skip the only question that matters, which is how the source knows. Ask it of every source, every time.

Worked classification: A student is given four documents and one object about the Stamp Act crisis of 1765: a resolution passed by the Virginia House of Burgesses in 1765; a letter from a Philadelphia merchant to a London supplier in 1765; a chapter in a history book published in 2010; a museum label written in 1998; and the printed tax stamp the label sits beside. Solution: the resolution and the letter are primary sources, created during the events by participants. The 2010 chapter is secondary. The museum label is secondary about 1765, but it would be primary evidence about how a museum in 1998 explained the crisis. The stamp itself is a primary artifact. The student notes the perspective of each: an assembly asserting its rights, a merchant worried about trade, a historian synthesizing, a curator addressing visitors.

Worked perspective comparison: Two hypothetical accounts of a 1774 town meeting are compared. Account A, by a Patriot organizer, says "the whole town united behind the boycott, which carried without a dissenting voice." Account B, by a Loyalist shopkeeper, says "a loud minority bullied the meeting into adopting the boycott." Neither can be taken as a headcount. The student lists what each writer could have observed (the meeting itself), what each had reason to emphasize (unity; coercion), and what evidence would test the claims: the meeting's recorded vote tally, later signatures on the boycott agreement, or a report by a third observer. The conclusion is a limited claim: "Both accounts state that the boycott was adopted; they disagree about how much support it had, and the vote record is needed to decide."

Worked position defense: Claim: "The trials after the Boston Massacre show that the rule of law still operated in Boston in 1770." Evidence: John Adams, a known Patriot, agreed to defend the soldiers; the court heard many witnesses; Captain Preston was acquitted and two soldiers were convicted of manslaughter rather than murder. Reasoning: verdicts that went partly against the popular Patriot version are consistent with a jury weighing testimony rather than following the crowd; the verdicts alone do not record the jurors' reasoning, so the trial testimony, the list of jurors and any later statements by them would strengthen or weaken this reading. Strongest objection: a jury drawn from a divided town may have contained Loyalist sympathizers, so the verdicts might reflect the jury's makeup rather than the evidence. Response: that objection is worth testing against records of who served, and the claim should be limited to "the trials followed legal procedure," not "Boston was calm."

Source record table: For one event from the years 1763 to 1783, build a table with five sources of at least two kinds (primary and secondary). Columns: title or description, creator, date created, kind for your question, the creator's position and purpose, one thing the source shows, and one thing it cannot show. Mark any two sources that corroborate each other independently, and any two that disagree.

Independent performance: Write a defended position of 300 to 400 words about a question on which your sources disagree. Success criteria: the claim is one sentence and could be wrong; at least three sources are cited, at least one primary and at least one secondary, each identified by kind; each source's perspective is named and used, not just noted; the strongest objection is stated fairly and answered with evidence or with a narrowing of the claim; and the closing sentence says what further evidence would strengthen or weaken the position. Exchange drafts with a partner, who checks every sentence for a perspective presented as a fact and either marks one for you to revise or, if there is none, picks the sentence closest to that error and explains how it keeps evidence and interpretation apart.