I want to create a field or use a field that will allow me to create "fuzzy dates".  I'm in a business where I want to create records containing a date field.  But, the date field sometimes needs to be flexible.  Sometimes, I know an exact date, like...

I am a lawyer who tracks evidence using a database. Quite often, I will use a piece of software that does what is called “Early Case Assessment” to cull through tens or hundreds of thousands of documents. The ECA software helps me narrow the number...