Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The station is located underground of Carrer Guipúscoa and Carrer Ca n'Oliva. It was opened in 1982 (42 years ago) (1982), serving then as the terminus of L4, which had just been extended to La Pau from Selva de Mar. In 1997 (27 years ago) (1997) it became the northern terminus of L2, which had formerly been in Sagrada Família.
After several modifications on both lines, it has finally become the north-eastern terminus of L4, which is currently undergoing a substantial extension towards the future Sagrera railway station.