March 7 (Reuters) - Thousands of Shi'ite pilgrims defied bombers and gunmen to flock to the holy city of Kerbala on Wednesday, the day after scores were killed in a string of attacks. Here is a list of some of the deadliest bomb attacks in Iraq this year: Jan. 16, 2007 - A car bomb and suicide bomber strike the Mustansiriya University in central Baghdad killing at least 70 people and wounding 180. Jan. 22, 2007 - A double car bombing at a second-hand goods market in Bab al-Sharji, a busy commercial area in central Baghdad, kills 88 people and wounds 160. Feb. 1, 2007 - Two suicide bombers strike at a market in the Shi'ite town of Hilla, killing 61 people and wounding 150. Feb. 3, 2007 - Truck bomb kills 135 people and wounds 305 at a market in the Sadriya quarter of central Baghdad. Feb. 12, 2007 - Multiple car bombs explode in the Shorja wholesale market, killing at least 71 people and wounding 165. At least nine others are killed at the Bab al-Sharji market, also in central Baghdad. March 6 - Two suicide bombers strike in Hilla, south of Baghdad, killing 105 pilgrims. Insurgents also launch attacks against Shi'ite pilgrims in a total of 12 attacks. In all 137 pilgrims died and 310 were wounded.
