The denomination 557 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: The denomination 557 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. ### Response: .