Final answer:
The date should be placed at the top of a letter, after the sender's address, using the proper format for the recipient's country, without abbreviating the month, followed by a blank line.
Step-by-step explanation:
The placement of the date in a letter is a crucial aspect of its format. The date should be positioned at the top of the letter, following the sender's address, and it should be the first line before introducing the inside address, which is the recipient's address. It's important to use an acceptable date format for the recipient's country.
For example, in the United States, the format 'January 1, 2010' is used, whereas in Europe, it would be '1 January 2010.' In both cases, the month should not be abbreviated. After writing the date, ensure that there is a blank line before proceeding with the inside address.