Final answer:
This question is likely asked in a literary context, and its answer requires a direct reference to the text. It checks for reading comprehension and memory of specific text events.
Step-by-step explanation:
Unfortunately, the question 'When was the last time Lydia came to one of the birthday dinners?' isn't associated with a factual reference, and does not specify any context for us to accurately determine this. In the context of a literary piece like a novel or short story, we would need to refer to the text itself to find this information. This type of question often checks for reading comprehension and memory of specific events in a text.
Learn more about reading comprehension