( CNN ) -- Though the attacks have been relatively rare and the bombings in Boston on Monday were shocking , Americans are not total strangers to terror attacks at home . Here is a list of the terror attacks on U.S. soil since 1980 that involved casualties : . 1978-1995 : Three people die and 23 others are wounded after a string of mail bombings carried out by Ted Kaczynski . `` The Unabomber , '' as he is also known , is serving eight life sentences for murder . He was not charged with terrorism , but the string of bombings is considered to be a terror case . February 26 , 1993 : A bomb explodes on the second subterranean level of Vista International Hotel 's public parking garage , below the 2 World Trade Center building . Six people are killed , and more than 1,000 people are treated for injuries . Six suspects were convicted of participating in the bombing . The seventh suspect , Abdul Rahman Yasin , is still at large . April 19 , 1995 : A bomb rips through the Alfred P. Murrah Federal Building in Oklahoma City , Oklahoma , killing 168 people and injuring almost 700 injured . Timothy McVeigh is convicted on federal murder charges and executed in 2001 . July 27 , 1996 : A bomb explodes in Centennial Olympic Park in Atlanta during the middle of a concert during the Summer Olympics . One person is killed , another dies from a heart attack , and 111 others are injured . Bombing suspect Eric Robert Rudolph is arrested in North Carolina in 2003 , after being indicted in 2000 for the Atlanta bombing and for other bombings , including one at an abortion clinic where one person died . Rudolph is serving four consecutive sentences of life in prison plus 120 years for the attacks . September 11 , 2001 : Nineteen al Qaeda members hijack four U.S. passenger airliners . Two are flown into the Twin Towers in New York , one crashes into the Pentagon and another crashes into the Pennsylvania countryside after passengers attempt to wrest control of the aircraft to prevent an attack on the U.S. Capitol . The death toll is staggering : 2,753 people are killed at the World Trade Center site ; 184 at the Pentagon ; and 40 in Shanksville , Pennsylvania . A total of 2,977 people are killed . November 5 , 2009 : Major Nidal Hassan goes on a shooting rampage at a military processing center at Fort Hood , Texas , killing 13 and wounding 32 . Hassan is on trial for the shooting deaths . Hassan has not been charged with terrorism , but the rampage is considered by many to be a terror incident . Obama calls bombings in Boston 'an act of terrorism ' LZ Granderson : April 15 , 2013 , serves as a deadly reminder .
Though attacks are still rare , Americans know of terror attacks at home . 1993 and 2001 : World Trade Center attacked ; second attack is cataclysmic . 1995 : Federal building in Oklahoma City bombed , claiming 168 lives . 2009 : In Fort Hood , Texas , 13 are killed in a hail of bullets .