No, the dates are not correct. The website says that the Mass began to be celebrated daily in the year 394. The Bible however, says that the Mass was celebrated daily right from Pentecost.
And they devoted themselves to the apostles’ teaching and fellowship, to the breaking of bread and the prayers. (Acts 2:42)
And day by day, attending the temple together and breaking bread in their homes, they partook of food with glad and generous hearts, (Acts 2:46)
Peter celebrated Mass on a ship before they sank and celebrated Mass in the middle of the night when Eutichus fell out the window, both in Acts of the Apostles.
Many of the other dates are correct but the author has it all wrong, stating that something was invented at a certain date when it wasn’t invented but just codified or formalized.
Others are just silly, like wax candles in the Church in 320. The Jews had oil lamps in the Temple. So what? They had to have light to see and wax candles were available, and probably cheaper than olive oil lamps. Who cares? It really is just silly.
Some are correct, like the declaration of the dogma of Mary’s assumption. That did take place in 1950.
-Tim-