HONG KONG (Reuters) – China’s decision to impose national security laws on Hong Kong has exacerbated public and international concerns over the erosion of freedoms in the city and has rekindled anti-government protests in the financial centre.

The national security legislation prompted U.S. President Donald Trump to move ahead and strip the financial hub of the special treatment Washington affords it that is seen as key to its success as a finance hub.

Following is a timeline of the key dates around Hong Kong’s protest movement triggered by a now-abandoned extradition bill:

2019

February – Hong Kong’s Security Bureau proposes amendments to extradition laws that would allow extraditions to mainland China and other countries not covered by existing treaties.

March 31 – Thousands take to the streets to protest against the proposed extradition bill.

April 3 – Hong Kong leader Carrie Lam’s government introduces amendments to the extradition laws that would allow criminal suspects to be sent to mainland China for trial.

April 28 – Tens of thousands march on Hong Kong’s Legislative Council to demand the scrapping of the proposed amendments.

May 11 – Scuffles break out in the legislature between pro-democracy lawmakers and those loyal to Beijing.

May 30 – Concessions to the extradition bill are introduced but critics say they are not enough.

June 6 – More than 3,000 Hong Kong lawyers dressed in black take part in a rare protest march.

June 9 – More than half a million people take to the streets.

June 12 – Police fire rubber bullets and tear gas during the city’s largest and most violent protests in decades. Government offices are shut.

June 15 – Lam indefinitely delays extradition law.

July 1 – Protesters storm the Legislative Council on the 22nd anniversary of the handover from British to Chinese rule, destroying pictures and daubing walls with graffiti.

July 9 – Lam says the extradition bill is dead and that government work on it had been a “total failure”.

July 21 – Men in white T-shirts, some armed with poles, storm a train at rural Yuen Long station, attacking passengers and passersby, after several thousand activists surrounded China’s representative office. The pivotal attack triggers a massive backlash against the police, who were accused of being slow to respond.

July 30 – Forty-four activists are charged with rioting, the first time the charge has been used during the protests.

Aug. 9 – China’s aviation regulator demands Hong Kong flag carrier Cathay Pacific suspend personnel who have taken part in the protests. The airline suspends a pilot, one of the 44 charged, the next day.

Aug. 14 – Police and protesters clash at Hong Kong’s international airport after flights were disrupted.

Aug. 21 – Alibaba, China’s biggest e-commerce company, delays its Hong Kong listing of up to $15 billion.

Sept. 2 – Lam says she has caused “unforgivable havoc” and would quit if she had a choice, according to a recording of remarks to business people.

Sept. 4 – Lam announces the extradition bill will be withdrawn. Critics say it is too little, too late.

Sept. 17 – Lam pledges to hold talks with the community to try to ease tensions.

Sept. 26 – Protesters trap Lam in a stadium for hours after her first “open dialogue”.

Oct. 1 – City rocked by the most widespread unrest since the protests began as China’s Communist Party rulers celebrate the 70th anniversary of the founding of the People’s Republic. Police shoot an 18-year-old protester in the shoulder.

Oct. 4 – Lam invokes colonial-era emergency powers to ban face masks, sparking violent protests. A police officer shoots a 14-year-old boy in the thigh.

Oct. 16 – Lam abandons her policy speech amid lawmakers’ jeers. Prominent rights activist Jimmy Sham is beaten by four men wielding hammers and knives.

Oct. 23 – Extradition bill is withdrawn.

Oct. 29 – Authorities disqualify pro-democracy activist Joshua Wong from standing in upcoming district elections.

Oct. 31 – Preliminary data shows Hong Kong slid into recession for the first time in a decade in the third quarter.

Nov. 2 – Protesters vandalise China’s official Xinhua news agency, smashing doors, setting fires and throwing paint.

Nov. 3 – A man with a knife bites off part of a politician’s ear and slashes several people after a shopping mall rally turns into a conflict with police.

Nov. 4 – University student Chow Tsz-lok, 22, falls from the third to the second floor of a parking lot as police disperse protesters.

Nov. 6 – A knife-wielding man attacks pro-Beijing lawmaker Junius Ho.

Nov. 8 – Chow dies, the first student death during the protests.

Nov. 11 – Police fire live rounds at protesters on the eastern side of Hong Kong island, one person wounded.

Nov. 17-29 – Protracted, at-times fiery siege at the Hong Kong Polytechnic University as police surround campus after students and activists barricaded themselves inside. More than 1,100 mostly young activists arrested in what was widely seen as the police’s first major success against the movement.

2020

Jan. 1 – A march drawing tens of thousands on New Year’s Day spirals into chaos as police fire several rounds of tear gas and water cannon at crowds, including families, before halting event.

April 17 – Beijing’s top representative office in Hong Kong says it is not bound by a law restricting interference by mainland Chinese bodies, stoking concerns over China’s encroachment.

April 18 – Police arrest 15 activists, including Democratic Party founder Martin Lee, 81, and millionaire publishing tycoon Jimmy Lai, 71, in the biggest crackdown on the pro-democracy movement since protests escalated in June.

May 8 – Rival lawmakers scuffle in the legislature over electing the chairman of a key committee.

May 21 – Beijing says it is moving to impose national security legislation on Hong Kong, following the often violent anti-government unrest last year.

May 24 – Police fire tear gas and water cannon to disperse thousands as protests over the national security laws pick up with the easing of coronavirus curbs on gathering.

May 27 – Riot police fire pepper pellets as protesters rally in the heart of the business district amid demonstrations over the national security laws and a bill that would criminalise disrespect of China’s national anthem.

May 28 – China’s parliament overwhelmingly approves imposing national security legislation on Hong Kong to tackle secession, subversion, terrorism and foreign interference.

May 28 – President Donald Trump orders his administration to begin the process of eliminating special U.S. treatment for Hong Kong, but stops short of calling an immediate end to privileges that have helped the territory remain a global financial centre.