Code for collecting and visualization of astronomical data
All code and description are available at gvard.github.io
See also First light dates of notable observatories with areas of main mirrors. Years 1990–2008, years 1845–1967, years 1916–1991 and distribution of diameters of big telescopes.
Data source: NASA Center for NEO Studies and IAU Minor Planet Center
Data source: IAU Minor Planet Center, The MPC Orbit (MPCORB) DatabaseSee this links for all Solar System related plots and code

Cumulative number of supernovae
Data source: David Bishop, Latest Supernovae Archives;
Transient Name Server stats.
Data as JSON.
Displaying data in html page using JavaScript
Data source: Transient Name Server stats
Data source: Jochen Greiner; GRBs localized within a few hours to days to less than 1 degree,
data as JSON.
Displaying data in html page using JavaScript
See this links for all stars related plots, code and data
Data source: J. McDowell, planet4589.org
Data source: J. McDowell, planet4589.orgSee this links for all manned spaceflights related plots and code

Data source: J. McDowell, planet4589.org; see event catalogs, deepcat (Deep Space);
The Deep Space Catalog: introduction and Background, catalog description.
Code: python script with data for plotting this charts.See this links for all space launches related plots and code
Feel free to contact me for details. It is possible to change the license for posting on web resources (in Wikimedia projects for example).