Conversation so far:
when was lucy's final appearance?
in May, 1893.
where was the final appearance?
at the World's Congress of Representative Women.
what was the reason for the congress?
focus was on state referenda under consideration in New York and Nebraska.
why was it the final appearance?
Stone was diagnosed as suffering from advanced stomach cancer.
what did she do at the conference?
Stone presented a speech she had prepared entitled "The Progress of Fifty Years.
what did she say in the speech?
said "I think, with never-ending gratitude, that the young women of today do not and can never know.
what else did she say?
their right to free speech and to speak at all in public has been earned..
was her speech effective enough to bring change?
Colorado, and Stone attended two days of meetings about getting a woman suffrage drive restarted in Kansas.

Question: who was Colorado?
Self-contained rewrite: What was Colorado?