The history of knives spans millennia and is a very interesting topic in which many people are interested. Archaeological findings, period texts, and modern culture have all contributed to an idea of what the history of cool knives looks like. The Stone Age was the first period during which humans began to use cutter blades. The Stone Age is also referred to as the Palaeolithic Period. It is a time period that stretches roughly 2.5 million years ago to 10,000 BC. 

During this time period, man was using stone tools and hunting for food. This is truly the earliest time period in which humans were making sharp cutting blades because it happened before metal could be shaped into a blade and made into proper tools.  The Bronze Age spans from approximately 3000 BC to 500 BC and marks the start of one of history's most prosperous times periods. The deadliest knife varies depending on the type of wound inflicted. Here are the top 7 options:

1. Stiletto Knife

A stiletto knife can be defined as one with a thin long rigid blade that is usually tapered at the point and made of steel. It is a dagger with a straight narrow blade and usually includes two sharpened edges or one sharpened edge and one false edge which is unsharpened, but often angled to resemble an edge. 

It has been used as both a stabbing weapon and for fighting, but today it's more commonly considered to be something worn as part of women's fashion. Today, stiletto knives are often simply decorative items carried by women for protection against muggers. It would be much more difficult for a mugger to use a knife against someone wearing a stiletto because of the stiletto's thin design. 

A close cousin of the stiletto is a push dagger which can also be double-edged or single-edged like the stiletto. A push dagger usually has a straight side edge and one end which is curved sharply downward toward the tip, instead of both edges being curved upward toward the tip. Push daggers are used as weapons when needed solely by pressing them into an opponent with one's hand, since they lack handles and grips, unlike most other types of daggers and knives.

2. Push Dagger

Push dagger is a type of stone knife that has been used by various cultures for millennia. It is usually an elongated piece of adze or small hammerhead with a chisel point on the cutting edge, which is used to punch holes through hard materials such as bone, antler, ivory, and turtle shells.

Push daggers have been recovered in existence since the Upper Paleolithic period some 30,000 years ago and have been found in Asia Minor and Europe. In particular, they are associated with the Natufian culture of Neolithic sites near the central Levant from around 12,500 BC. Push daggers give their name to a culture that spread throughout Europe during the late glacial period.

The name push dagger distinguishes it from the dagger proper, which is a fully equipped weapon. Compared to knives, daggers have a wider blade mounted on a short handle. The blade of this deadliest knife is usually double-edged and triangular in cross-section. Compared to the knife's blade, the dagger's blade is usually heavier and longer. 

For example, Iron Age museum examples from northern Europe vary from about in length to three times that long depending on their period of manufacture. However, they were not yet optimized for combat as later Iron Age specimens clearly were, with their thicker blades and increased weight towards the tip of the blade giving them considerable inertia in stabbing (as opposed to slashing) compared to smaller weapons like daggers, knives or awls.

3. Machete Knife

Machete is a type of knife with a long blade that's designed mainly for hacking, slashing, and chopping. In Spanish, machete means "big knife". The blade shape is typically a heavy cleaver-like blade attached to the hilt of the handle by way of a round or oval guard. It also states that they can be used to stab and chop, though this is not their main function. 

Machete knife is a common tool in South and Central America. Machetes are also widely used throughout the Caribbean, Africa, and, to a lesser extent, Southeast Asia. Machetes were originally tools of agriculture and there are many accounts of these being used for this purpose.

In some of the countries where these tools are used, the weapons industry has begun to re-purpose them for military use. In Colombia, machete production increased by 300% between 2000 and 2005. During that same time period, machete exports increased 200%. The largest importers of machetes are the United States (26%), Mexico (20%), and Puerto Rico (16%).

4. Karambit Knife

The karambit knife is a weapon that originated in Southeast Asia. It is well-known for its distinctive curved blade, which resembles the claw of a tiger. Karambit knives are sometimes referred to as "tiger claws". The design of karambit knives allows them to be held in a claw-like grip, which suits the knife's purpose.

The karambit is often seen as a last resort weapon, because of the difficulties involved in mastering its use. However, with proper training and practice, it can be an effective self-defense tool. The knife is similar to the Indonesian or Malaysian "klewang", which has a larger blade and only one point at the tip of the blade. It can be used as a utility knife, a general-purpose cutting tool, or as a last-ditch weapon for self-defense.

The karambit was created by the Sundanese people of Indonesia, who had a rich history of martial arts and culture. This deadliest knife has been used throughout Indonesian history for self-defense, hunting, fishing, slicing meat off bones, or whittling wood into useful things by taking the tomahawk axe off one end of the knife and cutting with the other. It was also used for hunting wild boar in the forests of Bali.

5. Bowie Knife

A Bowie Knife is a large, strong knife, typically over 20 cm in length. It was developed by James Bowie in 19th-century Arkansas and is known for its distinctive blade. The shape of the blade's edge typically features a clip point or drop point, which allows it to be used as both a utility knife and as a weapon. The Bowie Knife is also sometimes referred to as the American hunting knife.

The Bowie Knife was originally a hunting knife made for killing larger animals. Afterward, the Bowie Knife became more popular in fights as well. The blade of this Deadliest Knife doesn't have to be long but it is very wide and thick with a clip point, perfect for cutting and slicing on the battlefield. 

Above all, the Bowie knife has a reputation for being extremely strong and very sharp, making it a dangerous weapon in battle. The original design by James Bowie had few changes until about 20 years later when Jim Bowie's brother Rezin designed his own version of the knife which he called "The Louisiana Cimeter". He added several changes including a double-edged blade as well as widening and lengthening both sides of the blade.

6. Fillet Knife

An important knife in any kitchen, this deadliest knife is a long blade with a thin, sharp point for removing the bones from fish or other meats. A fillet knife typically has a flexible blade that curves to one side and is coated with plastic or laminated wood. The shape of the blade prevents food from sticking to it while allowing cooks to keep their fingers away from the sharp edge while manipulating slippery foods like whole fish.

As you can imagine, designing a perfect fillet knife is no easy task. There are many factors that go into crafting this versatile tool: design and function; durability and comfort; aesthetics and cost-effectiveness; ease of maintenance and storage.

Before we begin, let's talk about filleting fish. There are three main steps involved in the process of removing meat from a fish:  it should be cleaned; it should be cut into two or more parts; and finally, it should be boned.  Most fresh fish that are sold in markets for human consumption have their bones removed and are packaged into what is called a "filet.

7. Butterfly Knife

A butterfly knife, also known as a birdie knife, is a folding knife that has two small blades that are usually held in place by the spine of the knife. This type of knife can be opened using one hand and has multiple uses: it can be used for opening boxes, applying bandages or tourniquets, cutting lightweight materials (e.g. rope), or it can even provide self-defense against an attacker. 

The design was originally intended to imitate butterflies' wings when closed. The first butterfly knives were made by Bill Disston in 1912. The knife was not officially patented but was described by the patent examiner as a "constant curve" folding knife with a single blade and an open hole for handle mounting at both ends.