Original: They were reestablished after the German reunification in 1990, but Delitzsch and Eilenburg (two districts made up of the former Delitzsch district) were initially given to Saxony instead of Saxony-Anhalt.
Simplified: After the German reunification in 1990, the states were made again, but now Delitzsch and Eilenburg (two districts made of the former Delitzsch district) were given to Saxony instead of Saxony-Anhalt.