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Cave artists and pot makers used their thumb prints to sign their art. It is a significant event in the Forensic Science world. It shows how prehistoric people "discovered" their own and unique finger prints.

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The Chinese started using their fingerprints to sign important and legal documents. It is interesting how our ancestors decided on the significance of their unique fingerprint. That was an important step in the forensic science evolution.

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Galen (131-200 a.d.), a physician to Roman gladiators started doing autopsies on animals and humans to find out the cause of death. He was respected in Europe due to his multiple theories about medicine and anatomy. His findings about dissecting bodies in order to find the disease are important in the forensic science history and evolution. Autopsy route is something we still use these days, to find out the cause of death.

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Attorney and educator Roman Quintilian, whom defended a blind man that was accused of killing his mother in the ancient Rome. Quintilian argued, that the man couldn't have done this crime. He used the bloody palm print found at the scene to acquit his client. This made Quintilian the first forensic scientist.

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First forensic autopsies are done at the University of Bologna, Italy. This significant event started a heavy thirst for medicine and curiosity about autopsy and dissection. Human's body was a canvas for for future doctors and coroners.

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Pope Clement VI(1291–1352) orders autopsies on victims of the Black Death to find a cause for the plague. This event is very important in the forensic timeline. With the plague like this, it was crucial to find out more about the disease and hopefully prevent it in the future. Just like these days, the autopsies were done to find out about Coronavirus.

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First autopsies are done in North America, performed by French settlers on St. Croix Island. This is an important event, since up to this date the forensic science was being studied and performed in Europe and Asia. The fact that the French brought it to North America was significant for the future coroners and doctors.

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Marcello Malpinghi as a first person to recognize fingerprint' unique patterns. He used terms like, "loops" and "whorls" to describe the print. It is important in the current forensic science, where we study and can distinguish patterns of finger prints to determine DNA.

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Carl Wilhelm Scheele (1742–1786) develops the first test for arsenic. This crucial study developed into deeper research. Arsenic is highly toxic for humans and was/is often used as poison to kill.

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The first paper in hair analysis was published in France. This event is related to the DNA testing, since one hair strand can tell us who it belongs to. If hair is found at the crime scene, there is a way to determine where it came from.

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Friedrich Miescher (1844–1895) discovers DNA. This is big for the current events. DNA testing is used in most criminal cases. Blood, fingerprints, hair, particles of skin etc can determine the person it belongs to.

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Henry Faulds (1843–1930) shows that powder dusting will expose latent fingerprints. Faulds was a doctor and scientist, who worked on development of fingerprinting. He developed the fingerprint development system, which is still used until this day. He expressed the significance of the patterns and classification of fingerprints.

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Sir Edward Richard Henry (1850–1931) introduces a fingerprint classification system that is used today. Henry was known for introducing dogs to the police dogs, but most importantly he found out how to classify fingerprints in order to identify criminals.

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President Theodore Roosevelt establishes Federal Bureau Investigation (FBI). It is a domestic intelligence and security service of The United States. It investigates acts of terrorism against the country and within the states. It uses DNA testing, fingerprints and other methods to solve criminal cases.

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Victor Balthazard (1872–1950) publishes his belief that each fired bullet carries unique marks. Balthazard was a professor of forensic medicine. He is also known for his findings about hair, and fingerprints in forensic science. He was interested in firearms and he found that each bullet has a unique marking once shot. This helps us determine what kind of gun was used at a crime scene.

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Detection of gunshot residue by scanning electron microscopy and dispersive X-ray spectroscopy is developed. When a weapon is discharged, it leaves a residue. By testing and analyzing this residue, we can determine minor and major elements of the material.

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The conviction of Tommy Lee Andrews is the first case in the US history that included the DNA testing. Andrews was convicted for raping a woman in Florida. His semen sample was tested and used to convict him to the crime.

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The Combined DNA Index System (CODIS) is established. CODIS is the FBI's program that supports the DNA databases and it's software. It is crucial in attempts to find criminal offenders using their DNA samples.

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The National DNA Index System (NDIS) becomes operational. NDIS contains the DNA profiles known by federal, state and local participating forensic laboratories and agencies. Thanks to NDIS we are able to match found DNA to the offenders/criminals.

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Footwear Intelligence Technology that was created in 2007 in the UK. This database contains thousands of footprints and indents that can be used to identify the foot ad person it belongs to.