Event Invitation Request Form. Please complete all of the required fields below, and someone from our District Team will be in touch.Clearly state what you are inviting the recipient to do and why it is important. We have curated 15 different templates for invitation letters that can help you write invitation letters with ease. I am writing to ask whether you would be willing to present a talk at the conference as an invited speaker. Invited talks will be one hour long. For a formal letter invitation, it's best to explicitly point out the purpose, event goals, and the value it can bring to participants. The First Continental Congress convened in Carpenters' Hall in Philadelphia, Pennsylvania, between September 5 and October 26, 1774. Organizations in Philadelphia, there was a major void in the area of Cosmetics. Before you can host a great meeting, you need people to show up.