diff --git a/src/event_related.rs b/src/event_related.rs
new file mode 100644
index 00000000..b36b4905
--- /dev/null
+++ b/src/event_related.rs
@@ -0,0 +1,86 @@
+use crate::db::DbEvent;
+use crate::error::Error;
+use nostr_proto::{Event, EventKind, Id};
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, Default, Deserialize, Serialize)]
+pub struct Reactions {
+    pub upvotes: u64,
+    pub downvotes: u64,
+    pub emojis: Vec<(char, u64)>,
+}
+
+/// This contains event-related data that is relevant at the time of
+/// rendering the event, most of which is gathered from other related
+/// events.
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct EventRelated {
+    pub id: Id,
+    pub feed_related: bool,
+    pub replies: Vec<Id>,
+    pub in_reply_to: Option<Id>,
+    pub reactions: Reactions,
+    pub deleted_reason: Option<String>,
+    pub client: Option<String>,
+    pub hashtags: Vec<String>,
+    pub subject: Option<String>,
+    pub urls: Vec<String>,
+    pub last_reply_at: Option<i64>,
+}
+
+impl EventRelated {
+    #[allow(dead_code)]
+    pub fn new(id: Id) -> EventRelated {
+        EventRelated {
+            id,
+            feed_related: false,
+            replies: Vec::new(),
+            in_reply_to: None,
+            reactions: Default::default(),
+            deleted_reason: None,
+            client: None,
+            hashtags: Vec::new(),
+            subject: None,
+            urls: Vec::new(),
+            last_reply_at: None,
+        }
+    }
+}
+
+impl From<&Event> for EventRelated {
+    fn from(event: &Event) -> EventRelated {
+        EventRelated {
+            id: event.id,
+            feed_related: event.kind == EventKind::TextNote,
+            replies: Vec::new(),
+            in_reply_to: None,
+            reactions: Default::default(),
+            deleted_reason: None,
+            client: None,
+            hashtags: Vec::new(),
+            subject: None,
+            urls: Vec::new(),
+            last_reply_at: Some(event.created_at.0),
+        }
+    }
+}
+
+impl TryFrom<&DbEvent> for EventRelated {
+    type Error = Error;
+
+    fn try_from(dbevent: &DbEvent) -> Result<EventRelated, Error> {
+        Ok(EventRelated {
+            id: dbevent.id.clone().try_into()?,
+            feed_related: dbevent.kind == 1,
+            replies: Vec::new(),
+            in_reply_to: None,
+            reactions: Default::default(),
+            deleted_reason: None,
+            client: None,
+            hashtags: Vec::new(),
+            subject: None,
+            urls: Vec::new(),
+            last_reply_at: Some(dbevent.created_at),
+        })
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index 1b58aad7..0f12b4a9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,6 +6,7 @@ extern crate lazy_static;
 mod comms;
 mod db;
 mod error;
+mod event_related;
 mod globals;
 mod settings;
 mod ui;