diff --git a/arrow.qmd b/arrow.qmd
index ceb4c80..a9275f6 100644
--- a/arrow.qmd
+++ b/arrow.qmd
@@ -50,7 +50,7 @@ library(duckdb)
 ## Getting the data
 
 We begin by getting a dataset worthy of these tools: a data set of item checkouts from Seattle public libraries, available online at [data.seattle.gov/Community/Checkouts-by-Title/tmmm-ytt6](https://data.seattle.gov/Community/Checkouts-by-Title/tmmm-ytt6).
-This dataset contains 41,389,465 rows that tell you how many times each book was checked out each month from April 2015 to October 2022.
+This dataset contains 41,389,465 rows that tell you how many times each book was checked out each month from April 2005 to October 2022.
 
 The following code will get you a cached copy of the data.
 The data is a 9GB CSV file, so it will take some time to download: simply getting the data is often the first challenge!