CoinMarketCal or CoinMarketCalendar is a useful tool for searching for upcoming events in the crypto universe. I have been using it a lot as of late and I thought I should share it here. The web site is described as a Cryptocurrency calendar, evidence-based & community driven.
You can search for upcoming forks, upgrades, events, etc. using the "Keywords" field in the top section of the main page.

You can also select several languages for the pages to display in using the pull down menu at the top right of the page (see image below for language options).

A great thing about this calendar is that events are actually vetted by users like you and me. You simply vote "Real" or "Fake" and the consensus is posted in percentages for all to see. Each event also shows "Proof" and a "Source" for the information being posted so it helps getting a feel for each event. Let’s look at an example using the keyword Forks, see image below for search results:

And, here’s how you can vote for each event:

You can also contribute to the calendar by adding events. Each new event must come with a proof and a source so that it can be validated before being posted.
At the bottom of the page, you can also subscribe to their bi-weekly newsletter for a summary of three coins to keep an eye on.
Happy reading!