Original: When Tropical Depression One formed on May 28 , it marked the third time since 1851 , when reliable records in the Atlantic basin began , that a pre-season cyclone developed in three consecutive years , following Subtropical Storm Andrea which formed in May of 2007 and Tropical Storm Arthur in May of 2008 .
Simplified: The depression followed Subtropical Storm Andrea ( 2007 ) of May 2007 and Tropical Storm Arthur ( 2008 ) of May 2008 .