Which company was dissolved by the Supreme Court in 1904 due to its monopolistic practices in the railroad industry?

The dissolution of the Northern Securities Company by the Supreme Court in 1904 is significant as it marked a pivotal moment in the Progressive Era when the government began to actively intervene in monopolistic practices. The Northern Securities Company was a major railroad trust formed by the consolidation of several railroads, including the Great Northern Railway and the Northern Pacific Railway.

The Supreme Court's decision, based on the Sherman Antitrust Act, established a precedent that the government could break up monopolies that restrained trade and harmed competition. This ruling not only dissolved the Northern Securities Company but also demonstrated the federal government's commitment to regulating big business and ensuring fair competition in the marketplace. The case underscored a shift in public policy towards antitrust enforcement, reflecting growing concerns over the power of large corporations and their impact on the economy and society at large.

In contrast, the other companies mentioned were not directly dissolved for monopolistic practices at that time, illustrating the focused nature of the Supreme Court's action against the Northern Securities Company.