| 1-3 of 3Flashcard sets with a 'seismograph' term meaning 'a scientific instrument that could detect earthquakes hundreds of miles away, invented during the han dynasty' | |||
|---|---|---|---|
| # | Title | Terms | Date |
| 1 | Ancient Chinaby XoSchoolXo | 27 terms | January 5, 2008 |
| 2 | Ancient Chinaby sciguymjm | 12 terms | June 9, 2009 |
| 3 | Ancient Chinaby Summerrdarlingx3 | 54 terms | January 11, 2008 |