On 8 July 1906, Chamberlain celebrated his seventieth birthday and Birmingham was enlivened for a number of days by official luncheons, public addresses, parades, bands and an influx of thousands of congratulatory telegrams. Tens of thousands of people crowded into the city when Chamberlain made a passionate speech on 10 July, promoting the virtues of Radicalism and imperialism. Chamberlain collapsed on 13 July whilst dressing for dinner in the bathroom of his house at Prince's Gardens. Mary found the door locked and called out, receiving the weakened reply "I can't get out." Returning with help, she found him exhausted on the floor, having turned the handle from the inside, and having suffered a stroke that paralysed his right side.