Dropquote

Dropquotes, also called quotefalls, are a type of word puzzle that involves placing letters from letter banks in the right places in a grid to form a string of coherent text (often a famous quote).

Background
Dropquotes are a relatively recent invention, having debuted in a French puzzle book in 1975 titled "100 Jeux et Casse-tête", written by Pierre Berloquin (a notable French puzzle-writer and author of several cryptography manuals). However, beyond that there is not much recorded history for this puzzle type, at least not in in English-language resources.

In modern times, dropquotes aren't as common outside of two primary sources. The first being (as usual) puzzle hunts (and puzzle hunt-related media), wherein dropquotes are almost always presented with a twist or gimmicks. The second source is geocaches, which have been using various puzzle techniques since soon after their inception. However even then, dropquotes (like most other more puzzle-involved cache techniques) aren't nearly as common outside of hunts.

Notable Examples

 * Drop Everything (MITMH 2006) - A much more difficult variation on a dropquote using a hexagonal grid and without spaces being marked. To compensate for the extra difficulty, it also had letter being dropped in from three separate angles that end up cross-checking each other.
 * Drop and Give Me Ten (MITMH 2019) - A rare dropquote using something other than text.