Which of the following laws is described by this list? Pacific Railway Act Missouri Compromise Compromise of 1850 Kansas-Nebraska Act Clear my selection

The laws you've mentioned are all significant in the context of American history and the issues surrounding slavery and territorial expansion in the 19th century. The **Pacific Railway Act** initiated the construction of a transcontinental railroad, promoting westward expansion, while the **Missouri Compromise** and **Compromise of 1850** aimed to manage the balance of free and slave states. Finally, the **Kansas-Nebraska Act** was crucial, as it established popular sovereignty, allowing residents of new territories to decide the slavery issue themselves, leading to violent conflicts known as "Bleeding Kansas." These laws collectively illustrate the growing tensions between pro-slavery and anti-slavery factions within the United States, culminating in the Civil War. As states and territories were created, the question of whether they would permit slavery became central to American political life, influencing legislation and societal norms for decades.