What names were given to the meetings where enlightenment ideas were spread?

A meeting where enlightenment ideas are shared is called a conference.

Explanation:

A conference is an organized meeting where intellectuals share ideas or common knowledge. It could be in the form of public discussion, debate, or lecture so as to enlighten and update members about an idea. One major essence of a conference is to inform and bring to the awareness of members about an  idea, which might be an improvement on an already known or a new one.

The meeting gives rise to appropriate objections and recommendations about the idea discussed. This always make it possible for people to share the outcome of their research and recommendations with other intellectuals, which could be accepted or rejected due to some faults.

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