John D. Rockefeller

Revenue Act of 1935 Enacts "Wealth Tax" on Highest Incomes

| Importance: 8/10

President Franklin D. Roosevelt signs the Revenue Act of 1935 (49 Stat. 1014) into law on August 30, 1935, over strong opposition from business, the wealthy, and conservatives from both parties, introducing the “Wealth Tax” as the first major New Deal effort to reform federal taxation …

Franklin D. Roosevelt John D. Rockefeller Business Community Democratic Party taxation new-deal wealth-redistribution progressive-taxation regulatory-victory +1 more
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Standard Oil Breakup's Paradox - Rockefeller's Wealth Triples as Fragmented Companies Reconsolidate

| Importance: 9/10

The Supreme Court’s order to break Standard Oil into 34 separate companies produced a profound paradox: the breakup made John D. Rockefeller vastly richer while ultimately failing to prevent reconsolidation. Shareholders in Standard Oil received proportional stakes in each successor …

John D. Rockefeller Standard Oil Company U.S. Supreme Court antitrust corporate-power wealth-concentration monopoly enforcement-limitations
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Ida Tarbell Begins "The History of the Standard Oil Company" in McClure's Magazine

| Importance: 9/10

Ida Tarbell began publishing her groundbreaking 19-part investigative series “The History of the Standard Oil Company” in McClure’s Magazine in November 1902, running through October 1904. Her meticulous research exposed the predatory business practices, illegal rebate schemes, and …

Ida Tarbell McClure's Magazine Standard Oil Company John D. Rockefeller investigative-journalism muckraking corporate-power antitrust media +1 more
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U.S. Steel Formation - Morgan Creates First Billion-Dollar Trust

| Importance: 9/10

The United States Steel Corporation is incorporated with authorized capitalization of $1.4 billion, becoming the first billion-dollar corporation in history and controlling 60% of the nation’s primary steel capacity. Financier J.P. Morgan orchestrates the massive consolidation, fusing together …

J.P. Morgan Andrew Carnegie Charles Schwab Elbert Gary John D. Rockefeller gilded-age monopoly-power corporate-consolidation financial-power merger-wave
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Standard Oil Trust Controls 90% of U.S. Oil Refining - Monopoly Power Peak

| Importance: 8/10

By the end of the 1890s, the Standard Oil Trust controls the refining of 90 to 95 percent of all oil produced in the United States, representing the most complete industrial monopoly in American history achieved through systematic elimination of competitors, strategic mergers, and exploitation of …

John D. Rockefeller Standard Oil Trust Railroad corporations Competing refineries State regulators gilded-age monopoly-power corporate-power corruption anticompetitive-practices +1 more
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McKinley Victory Establishes Mark Hanna's Corporate Fundraising Model

| Importance: 9/10

William McKinley defeats William Jennings Bryan to win the presidency in what becomes a watershed moment in American campaign finance, powered by Republican National Committee Chairman Mark Hanna’s revolutionary systematic fundraising from corporations. The Ohio industrialist, shipping …

William McKinley Mark Hanna Standard Oil John D. Rockefeller Republican National Committee +1 more gilded-age campaign-finance corruption corporate-power electoral-politics +1 more
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Standard Oil Trust Formed - First Modern Corporate Monopoly Structure

| Importance: 10/10

On January 2, 1882, John D. Rockefeller and 40 other investors signed the Standard Oil Trust Agreement, creating the first modern corporate monopoly structure that controlled 90% of American oil refining. The trust pooled securities from 40 companies under nine trustees—John and William Rockefeller, …

John D. Rockefeller Standard Oil Company Henry Flagler Samuel C. T. Dodd William Rockefeller corporate-power monopoly trust-formation gilded-age institutional-capture
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Standard Oil Attorney Develops Trust Legal Innovation to Circumvent Anti-Monopoly Laws

| Importance: 9/10

Samuel C. T. Dodd, chief attorney for Standard Oil Company, developed a revolutionary legal structure in 1879 that adapted the common law instrument of a trust to create the modern business trust, circumventing Ohio’s anti-trust laws and state restrictions on interstate corporate ownership. …

Samuel C. T. Dodd John D. Rockefeller Standard Oil Company corporate-power legal-innovation regulatory-evasion institutional-capture trust-formation
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Cleveland Massacre - Rockefeller Consolidates Oil Refining Monopoly in Six Weeks

| Importance: 9/10

Between February 17 and March 28, 1872, in what became known as the ‘Cleveland Massacre,’ John D. Rockefeller and Standard Oil acquired 22 of the 26 competing oil refineries in Cleveland, Ohio—a brutal six-week consolidation campaign that established the template for monopolistic …

John D. Rockefeller Standard Oil Company Henry Flagler South Improvement Company corporate-power monopoly gilded-age predatory-pricing market-manipulation
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Standard Oil Company Incorporated in Ohio by John D. Rockefeller

| Importance: 9/10

John D. Rockefeller incorporated the Standard Oil Company in Ohio with $1 million in capital, transforming an 1863 partnership into what would become America’s most powerful monopoly. The company was formed with Rockefeller, his brother William, Henry Flagler, Samuel Andrews, and other …

John D. Rockefeller Standard Oil Company Henry Flagler Samuel Andrews William Rockefeller corporate-power monopoly gilded-age oil-industry institutional-capture
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