Answer:
The Visigoths were slowly invading the Byzantine Empire.
The Byzantine Empire was slowly losing its hold over its territories.
Explanation:
magsikap,bigyan ang mga Bata ng pag aaral,
You don't show options, so here are the different definitions
1. "the study of past events, particularly in human affairs."
2. "the whole series of past events connected with someone or something."
3. "a continuous, typically chronological, record of important or public events or of a particular trend or institution."