This allowed for representative suits in situations where there were too many individual parties (which now forms the first requirement for class-action litigation – numerosity). However, this rule did not allow such suits to bind similarly situated absent parties, which rendered the rule ineffective. Within ten years, the Supreme Court interpreted Rule 48 in such a way so that it could apply to absent parties under certain circumstances, but only by ignoring the plain meaning of the rule. In the rules published in 1912, Equity Rule 48 was replaced with Equity Rule 38 as part of a major restructuring of the Equity Rules, and when federal courts merged their legal and equitable procedural systems in 1938, Equity Rule 38 became Rule 23 of the Federal Rules of Civil Procedure.