diff --git a/book/history/sourdough-history.tex b/book/history/sourdough-history.tex
index 3021d36..995f909 100644
--- a/book/history/sourdough-history.tex
+++ b/book/history/sourdough-history.tex
@@ -204,7 +204,7 @@ the process of alcoholic fermentation. He would prove that
 yeast microorganisms are the reason for alcoholic fermentation
 and not other chemical catalysts. He continued with his research and
 was the first person to isolate and grow pure yeast strains.
-Soon later in \num{1868} in the Fleischmann brothers Charles
+Soon later in \num{1868} the Fleischmann brothers Charles
 and Maximilian were the first to patent pure yeast strains
 for bread making. The yeasts offered
 were isolated from batches of sourdough. By \num{1879} the machinery was built