Once again, Americans are facing a tragedy involving guns. This time, at least 10 people were killed during an attack at a Texas high school Friday.

More than five years have passed since the shooting at Sandy Hook Elementary School, where 20 children and six adults were killed. In that time, dozens of gun safety proposals have been introduced in Congress attempting to fix glaring issues with gun safety and regulation. More than 1,600 mass shootings have taken place in America since then.

Here is a guide to what Congress has — or, more accurately, has not — accomplished during this time.

Congressional Inaction

Passed no gun

control laws

Passed a gun

control law

Gun control laws included here are: expanding background checks, closing the “Charleston loophole,” improving record reporting, closing the “terror gap,” banning bump stocks, addressing gun trafficking, closing the “boyfriend loophole,” and creating a “red flags” process. A mass shooting involves four or more people injured or killed in a single event at the same time and location. Mass shooting estimates available after Jan. 13, 2013.

2012

December

Shooting at

Sandy Hook

elementary school

2013

January

February

12 MASS SHOOTINGS

12 MASS SHOOTINGS

March

April

19 MASS SHOOTINGS

17 MASS SHOOTINGS

Efforts to expand background checks and prevent gun trafficking fail in the Senate.

May

June

24 MASS SHOOTINGS

31 MASS SHOOTINGS

July

August

31 MASS SHOOTINGS

25 MASS SHOOTINGS

Bill is introduced to close the “boyfriend loophole,” which enables domestic abusers to possess guns if they are not married to their victims.

October

September

28 MASS SHOOTINGS

18 MASS SHOOTINGS

November

December

21 MASS SHOOTINGS

15 MASS SHOOTINGS

2014

January

February

15 MASS SHOOTINGS

17 MASS SHOOTINGS

April

March

20 MASS SHOOTINGS

16 MASS SHOOTINGS

May

June

21 MASS SHOOTINGS

27 MASS SHOOTINGS

July

August

34 MASS SHOOTINGS

37 MASS SHOOTINGS

Senate holds a hearing on closing the “boyfriend loophole,” but it never goes up for a vote.

October

September

19 MASS SHOOTINGS

20 MASS SHOOTINGS

November

December

23 MASS SHOOTINGS

21 MASS SHOOTINGS

2015

January

February

22 MASS SHOOTINGS

17 MASS SHOOTINGS

April

March

19 MASS SHOOTINGS

21 MASS SHOOTINGS

May

June

36 MASS SHOOTINGS

36 MASS SHOOTINGS

July

August

42 MASS SHOOTINGS

39 MASS SHOOTINGS

Legislation considered the “Charleston loophole,” which allows dealers to complete gun sales if background check takes longer than three business day. No hearing or vote is held.

October

September

20 MASS SHOOTINGS

34 MASS SHOOTINGS

November

December

27 MASS SHOOTINGS

20 MASS SHOOTINGS

Efforts to expand background checks and prevent terrorism suspects from buying firearms fail in the Senate.

2016

January

February

11 MASS SHOOTINGS

27 MASS SHOOTINGS

April

March

31 MASS SHOOTINGS

21 MASS SHOOTINGS

May

June

29 MASS SHOOTINGS

45 MASS SHOOTINGS

Efforts to expand background checks and prevent terrorism suspects from buying firearms fail in the Senate.

Another vote is held on a measure to prevent terrorism suspects from buying firearms, but it does not pass.

July

August

49 MASS SHOOTINGS

42 MASS SHOOTINGS

October

September

31 MASS SHOOTINGS

32 MASS SHOOTINGS

November

December

36 MASS SHOOTINGS

27 MASS SHOOTINGS

2017

February

January

32 MASS SHOOTINGS

25 MASS SHOOTINGS

April

March

39 MASS SHOOTINGS

22 MASS SHOOTINGS

June

May

23 MASS SHOOTINGS

35 MASS SHOOTINGS

July

August

37 MASS SHOOTINGS

33 MASS SHOOTINGS

October

September

27 MASS SHOOTINGS

28 MASS SHOOTINGS

Bills are introduced to ban “bump stocks” that mimic automatic fire, but no votes have been taken.

NOVEMBER

December

23 MASS SHOOTINGS

21 MASS SHOOTINGS

Bills are introduced to improve reporting to the federal background check system.

A bill to improve reporting in the federal background check system passes the House, but it is packaged with a “concealed carry reciprocity” bill, a priority for the gun lobby.

2018

January

February

23 MASS SHOOTINGS

14 MASS SHOOTINGS

Mass shooting

in Parkland, Fla.

“Red flags” bill introduced, enabling courts to block someone from having a gun if he or she poses a risk to self or others.

House background checks bill reaches 200 co-sponsors, nearing the 218-vote threshold to pass.

MARCH

APRIL

17 MASS SHOOTINGS

25 MASS SHOOTINGS

MAY

22 MASS SHOOTINGS

As part of omnibus spending package, Trump signs a bill to improve record reporting for the existing background check system.

Mass shooting

in Santa Fe, Tex.

Congressional Inaction

Passed no gun

control laws

Passed a gun

control law

Gun control laws included here are: expanding background checks, closing the “Charleston loophole,” improving record reporting, closing the “terror gap,” banning bump stocks, addressing gun trafficking, closing the “boyfriend loophole,” and creating a “red flags” process. A mass shooting involves four or more people injured or killed in a single event at the same time and location. Mass shooting estimates available after Jan. 13, 2013.

2012

December

Shooting at

Sandy Hook

elementary

school

2013

January

February

March

12 MASS SHOOTINGS

12 MASS SHOOTINGS

19 MASS SHOOTINGS

Efforts to expand background checks and prevent gun trafficking fail in the Senate.

April

May

June

17 MASS SHOOTINGS

24 MASS SHOOTINGS

31 MASS SHOOTINGS

Mass shooting

in Santa Monica,

Calif.

July

August

September

31 MASS SHOOTINGS

25 MASS SHOOTINGS

28 MASS SHOOTINGS

Bill is introduced to close the “boyfriend loophole,” which enables domestic abusers to possess guns if they are not married to their victims.

October

November

December

18 MASS SHOOTINGS

21 MASS SHOOTINGS

15 MASS SHOOTINGS

Mass shooting at

the Washington

Navy Yard

2014

January

February

March

15 MASS SHOOTINGS

17 MASS SHOOTINGS

16 MASS SHOOTINGS

Bills introduced to fund state “red flag” laws for people who pose a risk to self or others.

May

June

April

20 MASS SHOOTINGS

21 MASS SHOOTINGS

27 MASS SHOOTINGS

Mass shooting in

Fort Hood in

Killeen, Tex.

Mass shooting in

Isla Vista, Calif.

September

July

August

34 MASS SHOOTINGS

37 MASS SHOOTINGS

20 MASS SHOOTINGS

Senate holds a hearing on closing the “boyfriend loophole,” but it never goes up for a vote.

October

November

December

19 MASS SHOOTINGS

23 MASS SHOOTINGS

21 MASS SHOOTINGS

Mass shooting in

Marysville, Wash.

2015

January

February

March

22 MASS SHOOTINGS

17 MASS SHOOTINGS

21 MASS SHOOTINGS

Mass shooting at

a church in

Charleston, S.C.

April

May

June

19 MASS SHOOTINGS

36 MASS SHOOTINGS

36 MASS SHOOTINGS

Legislation considered the “Charleston loophole,” which allows dealers to complete gun sales if background check takes longer than three business days. No hearing or vote is held.

July

August

September

42 MASS SHOOTINGS

39 MASS SHOOTINGS

34 MASS SHOOTINGS

Mass shooting in

San Bernardino, Calif.

Mass shooting in

Roseburg, Ore.

October

November

December

20 MASS SHOOTINGS

27 MASS SHOOTINGS

20 MASS SHOOTINGS

Efforts to expand background checks and prevent terrorism suspects from buying firearms fail in the Senate.

2016

January

February

March

11 MASS SHOOTINGS

27 MASS SHOOTINGS

20 MASS SHOOTINGS

Mass shooting at

Pulse nightclub

in Orlando

April

May

June

34 MASS SHOOTINGS

29 MASS SHOOTINGS

45 MASS SHOOTINGS

Efforts to expand background checks and prevent terrorism suspects from buying firearms fail in the Senate.

September

July

August

Another vote is held on a measure to prevent terrorism suspects from buying firearms, but it does not pass.

49 MASS SHOOTINGS

42 MASS SHOOTINGS

32 MASS SHOOTINGS

Mass shooting in

Dallas, Tex.

December

October

November

31 MASS SHOOTINGS

36 MASS SHOOTINGS

27 MASS SHOOTINGS

2017

February

January

March

32 MASS SHOOTINGS

25 MASS SHOOTINGS

22 MASS SHOOTINGS

April

May

June

39 MASS SHOOTINGS

23 MASS SHOOTINGS

35 MASS SHOOTINGS

July

August

September

37 MASS SHOOTINGS

33 MASS SHOOTINGS

28 MASS SHOOTINGS

Mass shooting

in Las Vegas

Bills introduced to ban “bump stocks” that mimic automatic fire, but no votes have been taken.

October

NOVEMBER

December

27 MASS SHOOTINGS

23 MASS SHOOTINGS

21 MASS SHOOTINGS

Mass shooting in

Sutherland

Springs, Tex.

Bills are introduced to improve reporting to the federal background check system.

A bill to improve reporting in the federal background check system passes the House, but it is packaged with a “concealed carry reciprocity” bill, a priority for the gun lobby.

2018

January

February

MARCH

23 MASS SHOOTINGS

14 MASS SHOOTINGS

17 MASS SHOOTINGS

Mass shooting

in Parkland, Fla.

House background checks bill reaches 200 co-sponsors, nearing the 218-vote threshold to pass.

APRIL

MAY

“Red flags” bill introduced, enabling courts to block someone from having a gun if he or she poses a risk to self or others.

As part of omnibus spending package, Trump signs a bill to improve record reporting for the existing background check system.

25 MASS SHOOTINGS

22 MASS SHOOTINGS

Mass shooting

in Santa Fe, Tex.