Final answer:
Cabeza de Vaca reached Texas following the disastrous Narváez expedition, which aimed to find gold but ended in a struggle for survival.
Step-by-step explanation:
Álvar Núñez Cabeza de Vaca reached Texas after the collapse of the Narváez expedition. This expedition began in 1527 with Pánfilo de Narváez leading a group into the Southeastern part of what is now the United States, including the area later known as Texas. The Narváez expedition was initially a quest for gold and conquest, similar to other Spanish expeditions in Mexico and South America.
The expedition met with a series of disasters, and after shipwrecks and other calamities, only four members, including Cabeza de Vaca, survived and eventually made contact with indigenous peoples. Cabeza de Vaca wrote about these experiences in his work, Adventures in the Unknown Interior of America, outlining the challenges faced by the group and the hospitality of the Native Americans they encountered.