Bryan is chatting with a friend and tells the friend that the capital of china is beijing, but in the past had been called peking. his friend remarks that this is fascinating, and asks when bryan learned that. bryan thinks for a moment and then says, "i don’t really know." the information about beijing/peking was likely retrieved from bryan’s:

The answer is semantic memory.

Explanation:

Semantic memory stores information about ideas or concepts that are not drawn from personal experience. This type of memory is also responsible for remembering the names of colours, people's names or capital cities. It also helps us remember automatic tasks such as knowing how to turn on a computer or articulating a coherent sentence.