TIMELINE-Key dates for Hong Kong extradition bill and protests

HONG KONG, July 1 (Reuters) - Millions of people have taken to the streets in the past three weeks to protest against a proposed extradition bill that has plunged Hong Kong into political crisis and triggered calls for embattled leader Carrie Lam to step down.

Amendments to the Fugitives Offenders Ordinance bill would have allowed individuals, including foreigners, to be sent to mainland China to face trial in courts controlled by the Communist Party. The changes were seen by many as a threat to the rule of law in the former British colony.

Lam suspended the bill after some of the largest and most violent protests in decades but has stopped short of protesters' demands to scrap it.

Following is a timeline of the key dates around the extradition bill and the protests it triggered.

February 2019 – Hong Kong's Security Bureau submits a paper to the city's legislature proposing amendments to extradition laws that would provide for case-by-case extraditions to countries, including mainland China, beyond the 20 states with which Hong Kong already has treaties.

March 2019 - Thousands take to the streets of Hong Kong to protest against the proposed extradition bill. The American Chamber of Commerce expresses serious reservations in a submission to Hong Kong's Secretary for Security, John Lee. It says the bill will "undermine perceptions of Hong Kong as a safe and secure haven for international business operations".

April 3, 2019 – Carrie Lam's government introduces amendments to Hong Kong's extradition laws that would allow criminal suspects to be sent to mainland China for trial. Opponents say the changes would put them at the mercy of Chinese courts, controlled by the Communist Party, with a record of arbitrary detentions, torture and other human rights violations.

April 28, 2019 – Tens of thousands of people march on Hong Kong's parliament to demand the scrapping of the proposed extradition laws.

May 8, 2019 – A U.S. congressional commission says the proposed extradition bill could extend China's "coercive reach" into the financial hub and create serious risks for U.S. national security and economic interests in the city.

May 11, 2019 – Scuffles break out in Hong Kong's legislature between pro-democracy lawmakers and those loyal to Beijing over the extradition bill.

May 14, 2019 – Hong Kong legislators clash over the proposed law, with some democrats shouting "Scrap the evil law".

May 21, 2019 – Hong Kong leader Carrie Lam says her administration is determined to push through the bill despite mounting opposition locally and internationally. Authorities say they will bypass normal legislative procedures to expedite the bill.