|1 = * 2004: MIRIAM was released.The 20th is also listed. |2 = * 2011: Hatsune Miku's debut at Mikunopolis in Los Angeles. |11 = * 2013: YANHE was released. |12 = * 2012: Luo Tianyi was released. |13 = * 2012: V3 Gackpoid was released. |14 = * 2009: SONiKA was promoted. * 2010: Tonio was released. |15 = * 2009: (according to YAMAHA's VOCALOID timeline) SONiKA was shipped and released. |16 = * 2015: v4 flower was released. |17 = * 2015: Yuezheng Ling was released. |18 = * 2008: Kagamine Rin/Len act2 was released. |24 = * 2010: SONiKA's Chinese edition was released. |26 = |27 = |29 = |30 =