Original: Although several other encyclopaedias competed with the Britannica, such as Rees's Cyclopaedia and Coleridge's Encyclopaedia Metropolitana, these competitors either went bankrupt or were left unfinished due to disagreements among their editors.
Simplified: Although a few other encyclopaedias had been fighting with the Britannica, such as Rees's Cyclopaedia and Coleridge's Encyclopaedia Metropolitana, these encyclopedias either went bankrupt or were not finished because the people writing them argued.