Final answer:
During the California Gold Rush, many gold seekers traveled west on the steamship 'California', and the correct way to mention the ship in a sentence is by italicizing or using quotation marks around the name.
Step-by-step explanation:
During the California Gold Rush, many gold seekers traveled west in search of fortune, following routes such as the Oregon Trail, and utilizing various modes of transportation. Notably, by the end of 1848, word of gold in California's American River had spread, leading to an influx of thousands of people from around the world. The steamship California was one of the vessels that played a role in this mass movement. When it comes to the grammatical correctness of how to mention the steamship in a sentence, proper nouns like ship names are usually italicized or enclosed in quotation marks. Therefore, the correct way to write the sentence is: "Many gold seekers traveled west on the steamship 'California'." This highlights the proper noun and differentiates it from the rest of the text.