1500-1900 (Ancient Era)
1901-1980 (20th Century)
1981-Present (Tech Boom)
100

1590

Year the microscope was invented

100

1950

Year the cardiac pacemaker was invented

100

1981

Year AIDs was identified

200

1816

Year the stethoscope was invented

200

1957

Year the oral polio vaccine was created

200

1996

Year the first sheep was cloned

300

1895

Year x-radiation was discovered

300

1928

Year penicillin was discovered

300

2013

First baby cured of HIV in the US

400

1800

Year laughing gas was first used for surgery

400

1967

Year the first hospice was founded

400

2003

Year the Human Genome Project was completed

500

1853

Year the first syringe was created

500

1953

Year of the fist successful kidney transplant

500

2006

Year the HPV vaccine was approved
600

1796

Year the smallpox vaccine was created

600

1975

Year the first CT scanner was developed

600

1984

Year DNA fingerprinting was developed