Continuity and Change in Period 6

By the end of this lesson, students will be able to:

• Apply the three components of the AP Continuity and Change reasoning process (3.i, 3.ii, and 3.iii) to developments drawn from across Period 6, 1865 to 1898.
• Identify, on each of six thematic axes, at least one significant shift and one stubborn continuity between the agrarian republic of 1865 and the industrial empire of 1898.
• Account for why some inheritances of the antebellum and Reconstruction era survived three decades of industrial transformation, even as the structure of the economy was rebuilt.
• Argue, with specific evidence drawn from at least three points across the period, whether change or continuity is the more historically consequential pattern.
• Construct an LEQ thesis that defends a defensible position on a Continuity-and-Change prompt and that identifies a specific historical context for the argument.

From a distance, Period 6 looks like a single sweeping transformation. A republic of farms became the largest industrial economy in the world. Federal subsidies and the Bessemer converter built a national rail network and a national steel industry. Twenty million immigrants entered the country, and most of them landed inside cities that had not existed at industrial scale a generation earlier. The story is real, and the AP exam rewards students who can tell it with precision. The trouble is that the same thirty-three-year window also reveals something else: how much survived. Cotton remained the central crop of the South. White supremacy survived Reconstruction and was rebuilt as Jim Crow. Most American workers in 1898 still worked outside any union, and most women and Black workers were still excluded from the skilled trades that the new national unions defended. A thesis that captures only the change misses the more interesting historical question, which is why so much persisted across a period that was supposed to remake everything.

The synthesis task that closes Unit 6 is therefore double-sided. Students need a vocabulary for the changes (industrial capitalism, the trust, the second industrial revolution, mass immigration from southern and eastern Europe, the eight-hour movement, the Interstate Commerce Act, the Sherman Antitrust Act, civil-service reform, mass consumer culture) and a vocabulary for the continuities (Anglo-Protestant cultural dominance, white supremacy, agrarian dominance for most American households, vast inequality, the exclusion of women and Black workers from organized labor, laissez-faire as the public ideal). The AP Continuity and Change reasoning process is the tool that organizes the two together. It asks students to identify a pattern, to account for what produced it, and to weigh its significance. None of those moves is optional on the rubric. The LEQ analysis point goes only to responses that move beyond identification into causation and significance.

Three caution lines are worth drawing at the start of this lesson. First, change and continuity are not opposites in any simple sense. Industrial capitalism shifted the structural location of millions of American workers from farm to factory, and yet the inequalities those workers faced (wage labor for someone else, exposure to financial panic, racial and gender exclusion from the best jobs) extended patterns that ran back through the antebellum era (KC-6.1.I.C). The shift in scale and the continuity of structure happened simultaneously. Second, the same development can carry both threads. Hamilton's old idea of a federal government that supported infrastructure and finance was realized at unprecedented scale by railroad subsidies and the late-century tariff regime, even as the same federal government refused to regulate the trusts those subsidies helped build until the very end of the period (KC-6.1.I.A, KC-6.1.II.A). Third, the bookend dates do not mark clean breaks. Many of the patterns that look like Period 6 changes (the long retreat from Reconstruction's promise of equal citizenship, the corporate consolidation movement, the rise of the immigration debate) were already underway by 1865 or were not finished until well into Period 7.

Period 6 ends, in the College Board's framing, with the Spanish-American War of 1898. That choice is itself an argument about continuity and change. The turn to overseas empire was a genuine novelty in modern American foreign policy, the first sustained projection of U.S. military force across an ocean for the purpose of acquiring territory. The fact that it was even possible is the change. The fact that the industrial economy, the steel-hulled fleet, and the missionary and commercial networks that made the war possible had all been built during the preceding three decades is the continuity. Both observations are correct, and the LEQ rewards students who hold them in tension.

The College Board names three components of the Continuity and Change reasoning process. A response that earns the analysis point on the LEQ rubric must demonstrate at least one of them in service of the larger argument; a strong response demonstrates all three. Practice each one on the six axes listed below.

Use the table below as the anchor of the lesson. Each row asks one major domain of Period 6 to do its work. The left column names the shift; the right column names what stayed. A complete LEQ response will lean on three or four rows; a comprehensive review essay can cover all six.

How to use the table on the LEQ. A defensible thesis takes a clear position on whether change or continuity is the more consequential pattern across the chosen axis or axes, and signals which body paragraphs will carry the weight. The strongest responses argue both, with the thesis identifying which side the argument ultimately favors, and with at least one body paragraph devoted to the counterweight. A response that names only changes (or only continuities) will not earn the complexity point.

A synthesis lesson works best when its sources span the period. The three excerpts below mark the early industrial moment after the Civil War, the consolidation of Jim Crow at the close of Reconstruction's reversal, and the Populist insurgency of the 1890s. Read them as a set: each one anchors a different position on the continuity-change ledger.

1. (Continuity and Change · Component 3.i) Choose any one of the six axes of change. State the pattern in a single sentence: across 1865 to 1898, in this domain, this is what shifted and this is what stayed. Defend the framing.
2. (Continuity and Change · Component 3.ii) Account for the causes of one major continuity in Period 6. Why did white supremacy survive Reconstruction and reorganize itself as Jim Crow even as the industrial economy was rebuilding the rest of the country? Identify at least three contributing causes and rank them.
3. (Continuity and Change · Component 3.iii) Assess the significance of one major shift in Period 6. Was the rise of industrial capitalism the most consequential change of the period, or was the consolidation of Jim Crow, or the federal government's first regulatory experiments? Defend your ranking with evidence.
4. (Synthesis) Compare the United States in 1865 with the United States in 1898 along any two of the six axes. The shift from one to the other is the headline change of Period 6. Identify two structural continuities that bridge the bookend dates and account for why they survived three decades of industrial transformation.
5. (Comparison) The phrase "free labor" appeared in Republican Party rhetoric in 1860, in the Knights of Labor platform of 1878, and in William Jennings Bryan's Cross of Gold speech of 1896. Trace its practical reach across these three moments. Whose work was protected by the phrase, and whose was not?
6. (Causation) Account for the global setting that made Period 6 possible. How did European capital markets, transatlantic shipping, mass migration from southern and eastern Europe, and a worldwide deflationary cycle shape the continuity-and-change ledger inside the United States?

Draft alignment — pending educator review. AP USH codes correspond to the official College Board Course and Exam Description (Effective Fall 2023, Version 1). Statements below are paraphrased in the CountryReports voice; refer to the College Board's published CED for verbatim wording.