[header] How to write a formal invitation [title] Write out dates. [step] Regardless of the type of event you're inviting your guests to, you should use a formal writing style on a formal invitation. This means spelling out dates and other words that are usually abbreviated.
[substeps] For example, you should write " saturday, the nineteenth of november " instead of " saturday, november 19th. " you should also write " 253212 boston street " instead of " 253212 boston st.