The Leipzig Interim was one of several temporary settlements between the Emperor Charles V and German Lutherans following the Schmalkaldic War.
In order to make it less objectionable, a modification was introduced by Melanchthon and other Protestant theologians, commissioned by Elector Maurice of Saxony.
The Lutherans attempted to explain their sense of what they considered essential points of doctrine, e.g. justification and others.
They continued to negotiate on non-essentials or adiaphora, such as confirmation, the use of candles, vestments, holy days, etc.
The document was presented to the Saxon assembly held at Leipzig in December 1548; it was not adopted by the estates of the Electorate of Saxony, though some portions of it were later applied selectively to some regions in the land.