Lala Lajpat Rai (28 January 1865 – 17 November 1928) was an Indian independence activist. He played a pivotal role in the Indian Independence movement. He was popularly known as Punjab Kesari. He was one of the three Lal Bal Pal triumvirates. He was also associated with activities of Punjab National Bank and Lakshmi Insurance Company in their early stages of death in 1894. He died a few weeks after sustaining severe injuries during a baton charge by police when he led a peaceful protest march against the all-British Simon Commission, a commission constituted by the United Kingdom for Indian constitutional reform.

Matplotlib is a plotting library for the Python programming language and its numerical mathematics extension NumPy. It provides an object-oriented API for embedding plots into applications using general-purpose GUI toolkits like Tkinter, wxPython, Qt, or GTK. There is also a procedural "pylab" interface based on a state machine (like OpenGL), designed to closely resemble that of MATLAB, though its use is discouraged. SciPy makes use of Matplotlib. Matplotlib was originally written by John D. Hunter. Since then it has an active development community and is distributed under a BSD-style license. Michael Droettboom was nominated as matplotlib's lead developer shortly before John Hunter's death in August 2012 and was further joined by Thomas Caswell. Matplotlib 2.0.x supports Python versions 2.7 through 3.10. Python 3 support started with Matplotlib 1.2. Matplotlib 1.4 is the last version to support Python 2.6. Matplotlib has pledged not to support Python 2 past 2020 by signing the Python 3 Statement.

Chitin (C8H13O5N)n ( KY-tin) is a long-chain polymer of N-acetylglucosamine, an amide derivative of glucose. This polysaccharide is a primary component of cell walls in fungi, the exoskeletons of arthropods, such as crustaceans and insects, the radulae of molluscs, cephalopod beaks, and the scales of fish and skin of lissamphibians. The structure of chitin is comparable to another polysaccharide, cellulose, forming crystalline nanofibrils or whiskers. It is functionally comparable to the protein keratin. Chitin has proved useful for several medicinal, industrial and biotechnological purposes.

Thomas Randolph (June 1683 – 1729), also known as Thomas Randolph of Tuckahoe, was the first settler at Tuckahoe, a member of the House of Burgesses, and the second child of William Randolph and Mary Isham. daughter of Henry Isham, Katherine Isham (Banks.)