Conversation so far:
When did Steven Seagal get involved in martial arts?
In 1974 Steven Seagal met Miyako Fujitani, who had come to Los Angeles to teach aikido. When Miyako returned to Osaka, Seagal went with her.

Question: What kind of martial arts was Seagal doing?
Self-contained rewrite: What kind of martial arts was Steven Seagal doing?